Why We Choose HJS Catalytic Converters:
HJS German imported catalytic converters are made from some of the highest grade material you can find in a catalytic converter. This yields high performance gains and longevity so it wont deteriorate over time like lower grade catalytic converters. These catalytic converters flow up to 93-95% of a straight pipe in most applications. The benefit is that you get the "straight pipe sound" while still being able to provide enough emissions scrubbing to prevent a check engine light.
Complete high-performance exhaust & exclusive tuning upgrade for 750+ HP. Fabspeed's X-Pipe Exhaust System with your choice of tips, HJS German-imported Sports/Race Cats, BMC F1 Air Filters, and our ECU Tune. Available in a Street (Sport Catalytic Converters) or Race (Cat-Bypass) configuration depending on your application to maximize flow and performance.
Fabspeed audio clip features "Sport" option
MP4-12C Sport Catalytic Converters (STREET) or Cat Bypass Pipes (RACE)
MP4-12C Fabspeed ECU Tune (Optional Upgrade for STREET application and Required in RACE application)
- Fits all McLaren MP4-12C vehicles (2011+)
Fabspeed’s X-Pipe Performance Exhaust System is a direct replacement for the OEM exhaust (as well as the McLaren H-Pipe Race Exhaust)
Constructed from 14-16ga CNC mandrel-bent T304L stainless steel for improved sound, power, and durability
Fabspeed's MP4-12C Sport Cats utilize German-imported HJS tri-metallic sport catalytic converters which are less restrictive than the OEM McLaren catalytic converters. These Fabspeed-exclusive cats have been specifically developed and optimized for use in the McLaren MP4-12C, providing maximum power while minimizing CEL instances and complying with most emissions regulations.
RACE Option: Fabspeed's Primary Catbypass Pipes replace the restrictive factory catalytic converters with much less restrictive straight-through pipes for maximum flow and performance.
STREET Option: Constructed with Fabspeed-proprietary 200-cell HJS HD German imported high-flowing catalytic converters using T304L stainless steel - Optimized for maximum performance without excessive triggering of the check engine light
All Fabspeed components are direct bolt-on replacements for the factory parts, allowing for straight-forward DIY installation
All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty
|3800 RPM||5900 RPM||7200 RPM||Peak|
|TOTAL GAIN||+52.27 whp||+72.26 ft/lbs||+95.57 whp||+85.11 ft/lbs||+60.96 whp||+45.19 ft/lbs||+60.13 whp||+72.90ft/lbs|
Sport Catalytic Converter (STREET) - This product removes the OEM catalytic converters from the vehicle, and as such, is strictly intended for closed track events and off-road use only. This product contains a High-Flow Sport Catalytic Converter solely intended for track and race cars as it is NOT California Air Resources Board Certified and not EPA certified. You are hereby informed and warned to check your local, state, and federals laws before buying and installing these or any aftermarket parts to be sure whether usage is in violation. All installation-risk and use-risk is borne by the end-user and installer of these parts.
Cat Bypass (RACE) - This product removes the OEM catalytic converters from the vehicle, and as such, is strictly intended for closed track events and off-road use only. This product is or contains a Racing Cat Bypass Pipe, which will give you check engine lights on OBD2 cars. We suggest pairing this product with racing software to prevent fault codes and check engine lights. Racing Cat Bypass Pipes are solely intended for track and race cars as they are NOT California Air Resources Board Certified and not EPA certified. You are hereby informed and warned to check your local, state, and federals laws before buying and installing these or any aftermarket parts to be sure whether usage is in violation. All installation-risk and use-risk is borne by the end-user and installer of these parts.
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Installed myself. Removing stock catalytic converters was a challenge, especially the drivers side. The new sound is very good, not too loud, not too quiet. Performance gain is very noticeable, will light up the tires at 6k rpms in 1st & 2nd gears.