Seat Restoration

Spa-Francorchamps Seat Frame and Foam Kit - 3 Point Seat Belt
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The  Seat Frame Kit for 3-point belts provides an untrimmed seat foundation for classic Porsche 911, 912, 914 and 964 interiors from 1965–94. It brings together the frame, flexible suspension and shaped foam components required before the final upholstery is made and fitted.

Fits

• Porsche 911 / 912 1965–89
• Porsche 911 2.0L / 912 SWB 1965–68
• Porsche 911 2.2L / 2.4L / 2.7L RS LWB 1968–73
• Porsche 911 2.7L / 3.0 Carrera 1974–77
• Porsche 911 SC 3.0L 1978–83
• Porsche 911 Carrera 3.2L 1984–89
• Porsche 911 Turbo 3.0L / 3.3L (930) 1975–89
• Porsche 914
• Porsche 964 Carrera 2 / Carrera 4 1989–93

What This Product Does

A seat shell kit is the structural and padded starting point for building a complete classic car seat. Instead of supplying a finished seat in a predetermined colour or material, the kit can be passed to a vehicle trimmer for covering in leather, vinyl, cloth or corduroy. This allows the upholstery, stitching, piping and other finishing details to be selected to suit the vehicle’s existing cabin or restoration specification.

The Spa-Francorchamps design follows the profile of purpose-built sports seats associated with the late 1960s and early 1970s. Its square-tube construction, formed side and back padding, separate cushion and headrest create a period-style bucket seat suitable for classic road cars and interior restoration projects. This version is intended for use with a suitable 3-point seat belt arrangement.

Functions

• Provides the supporting frame and shaped padding for an upholstered seat
• Allows the covering material and trim details to be specified separately
• Uses flexible Duralastic belts to support the padded seating areas
• Creates a period-inspired sports-seat shape with defined side support
• Includes a separate headrest for completing the seat assembly
• Supports installation with an appropriate 3-point belt system

Technical Details

• Square steel-tube frame construction
• Includes the seat frame and Duralastic suspension belts
• Supplied with formed side and back foam
• Seat cushion and headrest are included
• Fire-resistant foam is used within this type of seat kit
• Incorporates 360 mm Porsche 914 and standard 385 mm mounting patterns

Symptoms of Fault

• Original seat foam has compressed, hardened or become misshapen
• The cushion sags or provides uneven support
• Corrosion, fatigue or previous repairs have weakened the existing frame
• Suspension straps beneath the cushion have stretched or failed
• Seat movement or rattling indicates worn mounting components
• A complete foundation is required for an interior restoration

Why Replacement Matters

Beginning with a complete frame and foam kit gives the trimmer a consistent base on which to shape and tension the upholstery. It avoids applying new covers over deteriorated padding or a damaged structure and provides greater control over the finished appearance. Seat height, angle and adjustment will depend on the runners and vehicle-specific mounting hardware selected. Seat mounts, belt anchorages and belt routing are safety-critical, so installation should be completed or inspected by a suitably experienced specialist.

FAQs

• Is upholstery included? No. The kit is supplied untrimmed so that a vehicle trimmer can apply the required covering and finishing details.
• What components are supplied? The kit includes the steel frame, suspension belts, side and back foam, seat cushion and headrest.
• Can the seat be matched to the existing interior? Yes. A trimmer can select suitable material, colour, stitching and piping to complement the cabin.
• Are seat runners and vehicle brackets included? Mounting components should be selected separately for the vehicle and required seating position.

R Seat Frame and Foam Kit - 5 Point Seat Belt
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The Spa-Francorchamps Seat Frame Kit provides the principal components required to create an upholstered classic sports seat for Porsche 911, 912, 914 and 964 applications. Supplied for a 5-point belt arrangement, this version includes rosettes to finish the belt cut-outs. 

Fits

• 911 & 912 (1965–1989)
• 911 1965–1968 2.0L / 912 SWB (F)
• 911 1968–1973 2.2L / 2.4L / 2.7L RS LWB (F)
• 911 1974–1977 2.7L / 1976–77 3.0 Carrera
• 911 1978–1983 3.0L / SC
• 911 1984–1986 3.2L
• 911 1987–1989 3.2L G50
• 911 Turbo 3.0L (930) 1975–1977
• 911 Turbo 3.3L (930) 1978–1989
• 964 Carrera 2 / Carrera 4 1989–1993

What This Product Does

A seat frame kit is an untrimmed foundation rather than a fully finished seat. It combines the supporting structure, suspension and shaped padding needed before upholstery is fitted. A professional vehicle trimmer can then apply leather, vinyl, cloth or corduroy to suit the car's interior, allowing the covering, stitching and piping to be specified as part of the restoration.

The Spa-Francorchamps design is based on the shape of period sports seats used during the late 1960s and early 1970s. Its square-tube frame, formed cushioning and separate headrest create a classic bucket-seat profile suitable for period-inspired road, restoration and competition-style interiors. Openings are incorporated for a suitable 5-point belt installation, with the supplied rosettes providing a tidy edge around the cut-outs.

Functions

• Forms the structural and padded base for a complete upholstered seat
• Allows trim material, stitching and finishing details to be selected separately
• Uses flexible Duralastic suspension belts beneath the padded areas
• Provides shaped foam for the backrest and side sections
• Accommodates an appropriate 5-point belt arrangement
• Includes cut-out rosettes for finishing the belt openings

Technical Details

• Square steel-tube frame construction
• Kit includes the frame, Duralastic suspension belts, side and back foam, seat cushion and headrest
• Fire-resistant foam is used within this type of seat kit
• Prepared with openings for a 5-point belt configuration
• Seatbelt cut-out rosettes are supplied
• Incorporates 360 mm Porsche 914 and standard 385 mm mounting patterns

Symptoms of Fault

• Original seat foam has compressed, hardened or lost its shape
• The cushion sags or provides uneven support
• Corrosion, fatigue or earlier repairs have affected the existing frame
• Suspension components beneath the seat have stretched or failed
• Worn upholstery has exposed deteriorated padding
• A complete untrimmed foundation is required for an interior rebuild

Why Replacement Matters

Starting with a complete frame and foam kit gives the trimmer a consistent structure on which to form and tension the upholstery. It avoids fitting new covers over tired padding or damaged supporting parts and allows the finished seat to be tailored to the vehicle's colour scheme and intended use. Final seat height, angle and fore-and-aft adjustment depend on the selected mounting brackets and runners. Seat mounts, belt anchorages and belt routing are safety-critical, so installation should use appropriate vehicle-specific hardware and be checked by a suitably experienced specialist.

FAQs

• Is upholstery included? No. The kit is supplied untrimmed for finishing by a suitable vehicle trimmer.
• What is supplied? The principal contents are the steel frame, suspension belts, formed side and back foam, cushion and headrest.
• Are the belt-opening rosettes included? Yes. This version comes with rosettes for the 5-point belt cut-outs.
• Are runners and vehicle brackets supplied? Mounting components should be selected to suit the vehicle, installation and required seating position.
• Can the upholstery be matched to the existing cabin? A trimmer can select appropriate material, colour, stitching and piping to complement the interior.

Complete leather restoration kit for the 2 front seats of Porsche 911 models 1974-1984 with original Recaro sport seats (pre-SC models, Carrera 3.0, SC and early Turbo models).

The easiest way to distinguish a sport seat from a standard (comfort) seat is to measure the side of the back rest. At the widest point, the comfort seat measures 12.5cm (5") whereas the sport seat measures 17.5 cm (7").

Our leather seat restoration kit is probably the best you can buy for completeness, originality and fit. The kit includes everything you typically need to bring your front seats back to factory new condition; all front seat covers and correction foam for seat base bolsters.

Our hand crafted front seat covers (2 back rest and 2 seat base covers), match Stuttgart factory specifications step by step; from the finest Scottish hides with Porsche PoN perforation for the center sections, top quality calico backing material, exact specification pleat filling, right down to the piping cord and the high resistance yarns we use. All hides are precision cut, piping bound and pre-formed to guarantee a factory authentic fit.

The kit is delivered with correction foam for the seat base bolsters. This allows you to correct the worn sides typically found on the driver's side seat bolster. Bear in mind, that a significantly deformed or decomposed seat base can only be restored with new cell foam. New seat base cell foams are not included as part of this kit.

The seat restoration kit comes with easy to follow step-by-step installation instructions and pictures. Installation requires no specific tools and is within the ability of the moderately experienced home mechanic.

Because of fading of the original material and colour differences between dye lots, we offer the front seat restoration kit in Black only. For complete full leather interior kits we can offer most original Porsche colors (please enquire).

Download the detailed installation instructions

Delivery Time is Normally 4-6 weeks on this product as this is made to order

ST Seat Shell and Foam Kit - 3 Point Seat Belt
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The Retro Trim ST Seat Shell Kit recreates the classic bucket seat style found in early Porsche 911 competition models and sports configurations of the 1960s and early 1970s. Supplied for a 3-point belt arrangement, this version does not have the belt cut-outs. 

Fits

• 911 & 912 (1965–1989)
• 911 1965–1968 2.0L / 912 SWB (F)
• 911 1968–1973 2.2L / 2.4L / 2.7L RS LWB (F)
• 911 1974–1977 2.7L / 1976–77 3.0 Carrera
• 911 1978–1983 3.0L / SC
• 911 1984–1986 3.2L
• 911 1987–1989 3.2L G50
• 911 Turbo 3.0L (930) 1975–1977
• 911 Turbo 3.3L (930) 1978–1989
• 964 Carrera 2 / Carrera 4 1989–1993
  
  

Handmade using a lightweight glass fibre shell, the ST combines authentic period styling with a slightly taller and wider design for improved comfort and accommodation of taller drivers.

This version is designed for cars retaining standard 3-point seatbelts.

Classic Porsche ST-Inspired Design

The ST-style bucket seat was used in early Porsche 911s and other competition cars of the period, including Ford applications.

Retro Trim has retained the distinctive shape and support of the original ST design while introducing subtle changes to make the seat more practical for today's classic Porsche driver.

The shell is slightly taller and wider than the original, providing additional space without losing its period appearance.

Lightweight Glass Fibre Shell

The ST uses a lightweight glass fibre shell with a laminated-in reinforcement grid around the mounting areas.

This provides additional support at the seat mounting points while maintaining the lightweight construction associated with classic competition seats.

Duralastic suspension belts work with the fire-resistant foam to provide a firm but comfortable seating position suitable for road, rally and historic motorsport use.

Designed for a 5-Point Harness

This version incorporates openings to correctly route the waist/lap belts of a 5-point harness and is supplied with rosettes for these openings.

The seat design also provides guidance for the harness belts while maintaining the appearance and supportive profile of the original ST seat.

Harness installation must use suitable vehicle mounting points and follow the harness manufacturer's instructions and any applicable motorsport regulations.

Lower Seating Options for Taller Drivers

The redesigned ST is slightly taller and wider than the original to accommodate a broader range of drivers.

For particularly tall drivers, the seat can also be customised with a lower seating position, providing additional headroom while retaining the appearance of a traditional ST-style bucket seat.

Original-Style Recaro Mounting Pattern

The seat incorporates both the Retro Trim mounting pattern and an original-style Recaro mounting pattern.

This allows the ST to be used with suitable original or original-style sliders and brackets, making it easier to incorporate into period-correct classic car installations.

Have Your Seats Upholstered Locally

Purchasing the ST as a seat shell kit allows your preferred local upholsterer or interior restoration specialist to complete the finished seats.

This gives you the freedom to select leather, leatherette, vinyl, fabric or period-style materials to match the existing interior or create a bespoke classic Porsche specification.

Kit Includes

• Seat shell/frame
• Duralastic suspension belts
• Side foam
• Back foam
• Seat cushion
• Headrest

Retro Trim ST 3-Point Seatbelt Classic Porsche Seat Shell Kits

The Retro Trim ST Seat Shell Kit provides a period-inspired seating solution for classic Porsche 911 restoration, road, touring and restomod projects retaining standard 3-point seatbelts.

Its lightweight glass fibre construction maintains the distinctive appearance of an early Porsche competition seat while the slightly taller and wider dimensions provide improved comfort for a broader range of drivers.

Duralastic suspension, reinforced mounting points and original-style Recaro mounting provisions make the ST an excellent choice for owners looking to combine classic Porsche motorsport styling with greater support and everyday usability.

ST Seat Shell and Foam Kit - 5 Point Seat Belt
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The Retro Trim ST Seat Shell Kit recreates the classic bucket seat style found in early Porsche 911 competition models and sports configurations of the 1960s and early 1970s. Supplied for a 5-point belt arrangement, this version includes rosettes to finish the belt cut-outs. 

Fits

• 911 & 912 (1965–1989)
• 911 1965–1968 2.0L / 912 SWB (F)
• 911 1968–1973 2.2L / 2.4L / 2.7L RS LWB (F)
• 911 1974–1977 2.7L / 1976–77 3.0 Carrera
• 911 1978–1983 3.0L / SC
• 911 1984–1986 3.2L
• 911 1987–1989 3.2L G50
• 911 Turbo 3.0L (930) 1975–1977
• 911 Turbo 3.3L (930) 1978–1989
• 964 Carrera 2 / Carrera 4 1989–1993
  
  

Handmade using a lightweight glass fibre shell, the ST combines authentic period styling with a slightly taller and wider design for improved comfort and accommodation of taller drivers.

This version incorporates dedicated waist/lap belt openings and rosettes for a 5-point harness.

Classic Porsche ST-Inspired Design

The ST-style bucket seat was used in early Porsche 911s and other competition cars of the period, including Ford applications.

Retro Trim has retained the distinctive shape and support of the original ST design while introducing subtle changes to make the seat more practical for today's classic Porsche driver.

The shell is slightly taller and wider than the original, providing additional space without losing its period appearance.

Lightweight Glass Fibre Shell

The ST uses a lightweight glass fibre shell with a laminated-in reinforcement grid around the mounting areas.

This provides additional support at the seat mounting points while maintaining the lightweight construction associated with classic competition seats.

Duralastic suspension belts work with the fire-resistant foam to provide a firm but comfortable seating position suitable for road, rally and historic motorsport use.

Designed for a 5-Point Harness

This version incorporates openings to correctly route the waist/lap belts of a 5-point harness and is supplied with rosettes for these openings.

The seat design also provides guidance for the harness belts while maintaining the appearance and supportive profile of the original ST seat.

Harness installation must use suitable vehicle mounting points and follow the harness manufacturer's instructions and any applicable motorsport regulations.

Lower Seating Options for Taller Drivers

The redesigned ST is slightly taller and wider than the original to accommodate a broader range of drivers.

For particularly tall drivers, the seat can also be customised with a lower seating position, providing additional headroom while retaining the appearance of a traditional ST-style bucket seat.

Original-Style Recaro Mounting Pattern

The seat incorporates both the Retro Trim mounting pattern and an original-style Recaro mounting pattern.

This allows the ST to be used with suitable original or original-style sliders and brackets, making it easier to incorporate into period-correct classic car installations.

Have Your Seats Upholstered Locally

Purchasing the ST as a seat shell kit allows your preferred local upholsterer or interior restoration specialist to complete the finished seats.

This gives you the freedom to select leather, leatherette, vinyl, fabric or period-style materials to match the existing interior or create a bespoke classic Porsche specification.

Kit Includes

• Seat shell/frame
• Duralastic suspension belts
• Side foam
• Back foam
• Seat cushion
• Headrest

Retro Trim ST 5-Point Harness Classic Porsche Seat Shell Kits

The Retro Trim ST Seat Shell Kit is ideal for classic Porsche 911 restoration, historic rally, competition-inspired and restomod projects requiring a traditional bucket seat with 5-point harness provision.

Its lightweight glass fibre shell retains the classic ST appearance while incorporating a reinforced mounting structure, Duralastic suspension and slightly increased dimensions for improved comfort.

With original-style Recaro mounting points, dedicated harness openings and options for taller drivers, the Retro Trim ST combines period Porsche motorsport styling with practical improvements for modern classic car use.

TransAm Seat Frame and Foam Kit - 3 Point Seat Belt
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The Retro Trim TransAm Seat Frame Kit is inspired by the distinctive racing seats used during the golden era of Trans-Am motorsport in the 1960s and 1970s. Supplied for a 3-point belt arrangement, this version does not have the belt cut-out rosettes. 

Fits

• 911 & 912 (1965–1989)
• 911 1965–1968 2.0L / 912 SWB (F)
• 911 1968–1973 2.2L / 2.4L / 2.7L RS LWB (F)
• 911 1974–1977 2.7L / 1976–77 3.0 Carrera
• 911 1978–1983 3.0L / SC
• 911 1984–1986 3.2L
• 911 1987–1989 3.2L G50
• 911 Turbo 3.0L (930) 1975–1977
• 911 Turbo 3.3L (930) 1978–1989
• 964 Carrera 2 / Carrera 4 1989–1993
  
  

Handmade around a welded lightweight steel tube frame, the TransAm combines high lateral support, a low seating position and Duralastic suspension to create a classic competition-style seat suitable for restoration, restomod and historic motorsport-inspired cars.

This version is designed for cars retaining standard 3-point seatbelts.

Inspired by Classic Trans-Am Racing

The Trans-Am race series brought together some of the most recognisable performance cars of the period, including Mustang, Cougar, Corvette, Camaro, Porsche, Challenger, Datsun, Charger, AMC, Triumph and Jaguar.

Many competition cars used lightweight fibreglass, alloy or specially fabricated racing seats to provide drivers with greater support during demanding race conditions.

The Retro Trim TransAm recreates this purposeful appearance while providing a seat suitable for today's classic car enthusiast.

High Lateral Support

The TransAm features raised side bolsters extending towards the front of the seat to provide increased lateral support.

This helps hold the driver more securely during enthusiastic driving while maintaining the distinctive appearance of a traditional 1960s and 1970s competition seat.

Designed for Standard 3-Point Seatbelts

This version is intended for vehicles retaining their standard 3-point seatbelt system.

It provides the increased support and classic competition appearance of the TransAm design without requiring a conversion to a multi-point harness.

Lightweight Steel Tube Frame

The seat is handmade using a welded lightweight steel tube frame, providing a strong foundation while retaining the lightweight philosophy of traditional competition seating.

Fire-resistant foam and Duralastic suspension belts provide a firm but comfortable seating position, helping make the TransAm suitable for longer road journeys as well as historic motorsport-inspired applications.

Low Seating Position

The TransAm seat itself is non-adjustable and is designed to position the driver as low as practical within the vehicle.

Final seat height and angle are determined during installation, allowing the mounting arrangement to be selected to suit the driver and vehicle.

An optional tilting bracket is available where improved access to rear seating is required.

Have Your Seats Upholstered Locally

Supplying the TransAm as a seat frame kit allows the upholstery to be completed by your preferred local trimmer or interior restoration specialist.

This gives you the freedom to choose leather, vinyl, fabric or period-style materials and match the seats to an existing classic interior or create a completely bespoke specification.

Kit Includes

• Seat frame
• Duralastic suspension belts
• Side foam
• Back foam
• Seat cushion
• Headrest
  
  

Retro Trim TransAm 3-Point Seatbelt Classic Racing Seat Frame Kits

The Retro Trim TransAm Seat Frame Kit is designed for classic car owners looking to combine period Trans-Am racing style with improved driver support and standard 3-point seatbelt compatibility.

Its welded lightweight steel tube frame, raised side support, Duralastic suspension and low seating position make it particularly suited to classic Porsche, American muscle, European sports car and historic racing-inspired projects.

The unfinished kit can be upholstered locally in materials chosen to complement a period restoration or create an individual restomod interior.

TransAm Seat Frame and Foam Kit - 5 Point Seat Belt
Sold each

The Retro Trim TransAm Seat Frame Kit is inspired by the distinctive racing seats used during the golden era of Trans-Am motorsport in the 1960s and 1970s. Supplied for a 5-point belt arrangement, this version comes with the belt cut-out rosettes. 

Fits

• 911 & 912 (1965–1989)
• 911 1965–1968 2.0L / 912 SWB (F)
• 911 1968–1973 2.2L / 2.4L / 2.7L RS LWB (F)
• 911 1974–1977 2.7L / 1976–77 3.0 Carrera
• 911 1978–1983 3.0L / SC
• 911 1984–1986 3.2L
• 911 1987–1989 3.2L G50
• 911 Turbo 3.0L (930) 1975–1977
• 911 Turbo 3.3L (930) 1978–1989
• 964 Carrera 2 / Carrera 4 1989–1993
  
  

Handmade around a welded lightweight steel tube frame, the TransAm combines high lateral support, a low seating position and Duralastic suspension to create a classic competition-style seat suitable for restoration, restomod and historic motorsport-inspired cars.

This version is designed for cars using a 5-point harness and features the required seatbelt cut-outs with finishing rosettes.

Inspired by Classic Trans-Am Racing

The Trans-Am race series brought together some of the most recognisable performance cars of the period, including Mustang, Cougar, Corvette, Camaro, Porsche, Challenger, Datsun, Charger, AMC, Triumph and Jaguar.

Many competition cars used lightweight fibreglass, alloy or specially fabricated racing seats to provide drivers with greater support during demanding race conditions.

The Retro Trim TransAm recreates this purposeful appearance while providing a seat suitable for today's classic car enthusiast.

High Lateral Support

The TransAm features raised side bolsters extending towards the front of the seat to provide increased lateral support.

This helps hold the driver more securely during enthusiastic driving while maintaining the distinctive appearance of a traditional 1960s and 1970s competition seat.

Designed for a 5-Point Harness

This version incorporates dedicated openings for routing the waist/lap belts of a 5-point harness.

Seatbelt cut-out rosettes are included, providing a neat finished edge around the harness openings while maintaining the classic appearance of the seat.

Lightweight Steel Tube Frame

The seat is handmade using a welded lightweight steel tube frame, providing a strong foundation while retaining the lightweight philosophy of traditional competition seating.

Fire-resistant foam and Duralastic suspension belts provide a firm but comfortable seating position, helping make the TransAm suitable for longer road journeys as well as historic motorsport-inspired applications.

Low Seating Position

The TransAm seat itself is non-adjustable and is designed to position the driver as low as practical within the vehicle.

Final seat height and angle are determined during installation, allowing the mounting arrangement to be selected to suit the driver and vehicle.

An optional tilting bracket is available where improved access to rear seating is required.

Have Your Seats Upholstered Locally

Supplying the TransAm as a seat frame kit allows the upholstery to be completed by your preferred local trimmer or interior restoration specialist.

This gives you the freedom to choose leather, vinyl, fabric or period-style materials and match the seats to an existing classic interior or create a completely bespoke specification.

Kit Includes

• Seat frame
• Duralastic suspension belts
• Side foam
• Back foam
• Seat cushion
• Headrest
• 5-point harness cut-out rosettes       
  
  

Retro Trim TransAm 5-Point Harness Classic Racing Seat Frame Kits

The Retro Trim TransAm Seat Frame Kit is designed for classic car owners looking for the appearance and support of a traditional Trans-Am competition seat combined with provision for a modern 5-point harness.

Its welded lightweight steel frame, high side bolsters, lowered seating position and Duralastic suspension make it particularly suitable for classic Porsche, American muscle cars, European sports cars, historic rally builds and competition-inspired restomods.

Dedicated harness cut-outs and supplied rosettes provide the necessary belt routing through the seat, while local upholstery allows the finished seat to be tailored to the style and materials of the vehicle.