Design911 is pleased to announce a new partnership with Rennen Plus.

A new range of Rennen Plus Porsche performance parts is now available to order directly from the Design911 website. This gives Porsche owners, workshops and engine builders a simple way to buy specialist ITB parts and accessories from one trusted supplier.

The new range includes ITB upgrade kits, air filter assemblies, sensor parts and supporting accessories for JSR barrel ITB installations. These parts are ideal for air-cooled Porsche 911 and 964 builds.

Whether you are building a fast road car, upgrading a classic 911, or working on a full performance engine build, Rennen Plus parts are now easier to source through Design911.

What Is Rennen Plus?

Rennen Plus supplies specialist performance parts for Porsche models.

The brand focuses on parts that help improve intake performance, throttle response and engine control. This makes Rennen Plus a strong choice for Porsche owners who want more from their air-cooled flat-six engine.

A key part of the Rennen Plus range is individual throttle body, or ITB, upgrades. These are popular with Porsche owners who want a sharper and more responsive driving feel.

An ITB setup can help the engine breathe more freely. It can also improve throttle response and add a more direct connection between the driver and the engine.

By adding Rennen Plus to the Design911 range, we are giving customers more choice when shopping for Porsche parts and accessories.

Rennen Plus ITB Upgrades Now Available

One of the main additions to the Design911 website is the Rennen JSR ITB upgrade range.

These kits are designed for selected air-cooled Porsche engines. They are suited to owners who want to improve intake performance while keeping the character of the Porsche engine.

For Porsche 964 4.0L builds, Design911 now offers the Rennen JSR ITB Upgrade for Porsche 964 4.0L with 45mm Classic Mesh Filters.

This kit is a good option for modified 964 engines where airflow and throttle response are important.

Design911 also stocks the Rennen JSR ITB Upgrade for Porsche 964 4.0L with 45mm Gunmetal 50mm Stacks.

This version gives the engine bay a clean performance look. The gunmetal finish and 50mm stacks make it a strong option for high-quality Porsche engine builds.

Classic Porsche 911 owners are also covered.

The Rennen JSR ITB Upgrade for Porsche 911 3.0L with 41mm Gunmetal ITG Filters is now available through Design911.

This kit is designed for Porsche 911 3.0L applications. It is ideal for owners who want to improve intake response while keeping the classic air-cooled driving feel.

Accessories for JSR Barrel ITB Setups

A good ITB conversion needs more than the main throttle body kit.

The right accessories help make the installation cleaner, more reliable and easier to complete. That is why the Rennen Plus range also includes supporting parts for JSR barrel ITB upgrades.

Design911 now offers the Rennen JSR Roller Barrel ITB Accessories Kit for Porsche.

This kit supports JSR roller barrel ITB installations and is useful for customers planning a full conversion.

For filter installations, Design911 also stocks the Rennen ITG Plenum Flange Set for JSR Barrel ITB Upgrade.

This part helps support ITG filter assemblies as part of a JSR barrel ITB setup.

Air Filter Options from Rennen Plus

Air filtration is an important part of any intake upgrade.

Different Porsche builds need different filter setups. Some owners want a classic look. Others need a setup better suited to road, rally or performance use.

The Rennen ITG Classic Mesh Air Filter Set for JSR Barrel ITB Upgrade is now available from Design911.

This is a good option for customers who want a classic-style filter setup for their ITB conversion.

Design911 also stocks two ITG air filter assemblies from Rennen Plus.

The Rennen ITG Air Filter Assembly Rally for JSR Barrel ITB Upgrade is suited to customers looking for a rally-style filter option.

The Rennen ITG Air Filter Assembly Normal for JSR Barrel ITB Upgrade is another option for JSR barrel ITB upgrades.

These choices make it easier to select the right filter setup for your Porsche build.

Sensor Parts for Engine Management

When fitting ITBs, engine management is very important.

The ECU needs accurate information from the engine. This helps with tuning, drivability and performance.

The Rennen Plus range at Design911 includes key sensor parts for JSR barrel ITB upgrades.

The Rennen Crankshaft Position Sensor Wheel Trigger Wheel for JSR ITB Upgrade supports accurate crankshaft position reading.

Design911 also stocks the Rennen Camshaft Position Sensor for JSR Barrel ITB Upgrade.

This part supports camshaft position reading for compatible engine management setups.

The Rennen Crankshaft Position Sensor CPS for JSR Barrel ITB Upgrade is also available.

For throttle position data, customers can order the Rennen Throttle Position Sensor TPS for JSR Barrel ITB Upgrade.

This sensor helps the ECU read throttle movement accurately. This is especially important with ITBs, where throttle response is a key part of the upgrade.

Why Buy Rennen Plus Parts from Design911?

Design911 has supplied Porsche parts to owners and workshops for many years.

Our website makes it easy to find the right parts for your Porsche. Customers can search by model, browse product categories and order parts online.

By partnering with Rennen Plus, Design911 is expanding its range of specialist Porsche performance parts.

This gives customers a simple way to buy Rennen Plus parts alongside other Porsche spares, upgrades and accessories.

For workshops, this can help save time when ordering parts for customer builds.

For private Porsche owners, it makes the buying process easier and more straightforward.

A Stronger Range for Air-Cooled Porsche Builds

Air-cooled Porsche models remain some of the most popular cars for restoration, tuning and performance upgrades.

The new Rennen Plus range is a strong addition for owners of classic Porsche 911 and Porsche 964 models.

From ITB upgrade kits to filters, sensors and accessories, the range includes useful parts for serious Porsche builds.

If you are planning an ITB conversion or upgrading an existing setup, Rennen Plus parts are now available to browse online at Design911.

Explore the latest Rennen Plus Porsche performance parts today on the Design911 website.