911 Porsche Throttle Body Kit, 41/36 CIS

Clewett Engineering Throttle Body Kit for 911 Porsche includes: throttle bodies, throttle linkage, air horns, air filter assemblies and TPS (throttle position sensor). Pre-assembled; hardware/gaskets/insulators/instructions included.

Key features:

• Custom USA-designed and manufactured parts
• Various throttle plate and intake port sizes to fit your engine exactly
• High quality throttle plate and shaft system that retains synchronization through vibration and temperature/heat cycles
• Optimized velocity stacks (air horns/trumpets) and intake tracts with smooth transitions for best air flow and intake charge velocity.
• Custom air filters and covers/rain shields compatible with IAT (intake air temperature) sensors and crankcase vent routing to the intake tract.
• Progressive throttle linkage for best drivability and response
• Direct fitment for factory 911 throttle linkages and 964/993 cables
• Insulators, gaskets, hardware, etc for install all included
• Of course, the legendary Porsche ITB sound and power!

Key points:

• Not compatible with A/C compressors!
  • With custom work they may be able to be made to fit certain compressors, but we do not officially support it at this time. We are working on design changes for A/C compatibility in the future, or we can order a set of PMO ITBs which are compatible.
• Product description shows throttle plate diameter and intake port diameter. For example, 46/41 = 46mm throttle plate, 41mm intake port, optimized for 3.2L Motronic intake ports.

Please don't hesitate to e-mail or call for assistance configuring a system for your application.

Please note, these are built to order to fit your application. Typically the build takes about 1-2 weeks if all components are in stock.

Certain options may also require a lead time for components to be available, and the lead time can depend -- we are happy to confirm lead times for you before you order.

Option selection: Please select injector type, vacuum ports (if required), air filter type and finish.

1. Compact or standard/long Bosch Style Fuel Injectors
2. Whether MAP (manifold absolute pressure) ports are needed for running a MAP Sensor. An optional MAP manifold is available: 1005-01
3. Idle Speed Control Ports  Yes / No (see our IACV kit option 1001-79)
4. Linkage Type for throttle: Linkage is used for 911s (pre-1989), and cable is used for 964 and 993 models (1989-1998)
5. Flat Top or Rain Shield Air Filters
6. A fuel line kit to ease fuel plumbing into 911s is available here: 9312-61
7. Color/finish options: Combinations of silver and black are available for the throttles and "trim" (other components).

Please provide engine size & year and the intake port size when ordering under special instructions. Note any engine modifications.

International orders must be shipped via FedEx or UPS