Exhaust Cat Cover Plate. Porsche 964 › 96421121303

Exhaust bolt repair kit for Porsche DFI Engines on 911/997/991/ Boxster & Cayman (9A1) 2009-Onwards

Holy broken bolts Batman! Even the latest generation of DFI (9A1) heads on the water-cooled engines are reporting broken exhaust bolts. Tasks ranging from a simple exhaust system update through an engine removal, are consistently plagued by snapped, rusted, and broken exhaust manifold bolts. Rarely can an accurate removal of the broken bolt be performed with the engine in the car, and even after removal, the task is time consuming and if not done carefully can lead to a damaged head or faulty repair. STOMSKI RACING's answer to these problems is the SR069, a kit that easily, accurately, and flexibly allows you to drill out the broken bolts - with the engine still in the car- saving time and headaches. A CNC milled plate indexes precisely off the broken bolts and/or bolt holes. Using our uniquely designed Thumb Screws, the SR069 plate is locked in place (by threading a Thumb Screw over a broken bolt or by using a supplied bolt threaded through the SR069 Thumb Screw). With the included pilot drills and drill guides, the faulty bolt can be drilled out, producing a perfectly perpendicular and centered hole that if necessary can be chased with an included M8x1.25 tap.

Kit includes anodized aluminum fixture, drill bits, tap with extension, drill jigs/guides, Thumb Screws, and hardware in a sturdy storage case. Also includes our SR065D drill guide.

Genuine Porsche V-band exhaust clamp for GT3, GT3 RS and Speedster with 4.0L engines. Please choose either Left or right, it fastens an adjoining exhaust connection.

Fits

• Porsche 991 GT3/RS/GT-Speedster 2014-2021
  
• Porsche 992 GT3/RS/ST 2021-2025
• Porsche 992 GT3 2025>>
  
   Check fitment for your specific vehicle (model, year, engine) before ordering.
  
  Diagram Ref no 19 & 20

What This Product Does

The V-band fastening draws the mating exhaust components together around their joint. Clamping pressure helps hold the connection in position and supports sealing when the adjoining surfaces and associated seal are serviceable.

Functions

• Fastens the mating exhaust connection.
• Helps retain alignment at the joint.
• Applies circumferential pressure to support sealing.
  
  Technical Details

• Component identification: exhaust clamp.
• Fastening type: V-band.
• Supplied diagram quantity: 1 in each referenced assembly.
  
  Symptoms of Fault

• Ticking or blowing audible near the connection.
• Black soot traces surrounding the joint.
• A clamp that cannot tighten correctly.
• Joint movement, uneven positioning or rattles.
• Noticeable exhaust odour around the affected connection.
  
  These signs warrant inspection; they do not establish that the clamp alone is responsible.
  
  Why Replacement Matters

Corrosion, deformation or damaged fastening hardware can reduce the clamp's ability to grip. Renewing a defective clamp helps re-establish the intended fastening arrangement. Before reassembly, examine the adjoining flanges, sealing components and supporting hardware: fitting a new clamp will not correct damaged mating surfaces or poor alignment.

FAQs

Is the component genuine Porsche?
The supplied product information identifies it as genuine Porsche, reference 9GT251616B (left) & 9GT251616C (Right)

Does the diagram quantity describe a complete kit?
No. The quantity identifies one clamp in each referenced assembly; it does not indicate that neighbouring components are included.

What needs checking before installation?
Inspect the connection surfaces, seal and surrounding supports for damage or corrosion. Follow the applicable Porsche repair instructions for assembly and tightening.

How can I verify the application?
Compare the listed models and engine specification with your vehicle, then confirm reference 9GT251616B & 9GT251616C against its VIN where necessary.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9GT251616

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