These Fabspeed Motorsport modular headers are the perfect solution for any street driven 992 GT3/ GT3RS. Our US Patented RENNKRAFT® modular design features a quick release V-band connector that...

  Inject new life into your 335i or 435i with a high-flow catted downpipe! Genuine 200-cell HJS catalyst instantly adds significant power, sound, and throttle response without triggering a...

Replace the worn-out or broken core of your factory Porsche catalytic converter(s) with a new high-performance HJS tri-metallic catalytic converter core.           ...

Inject new life into your M235i with a perfect high-flow catted downpipe! Genuine 200-cell HJS HD catalyst instantly adds a staggering 21 whp and 36 ft/lbs of torque at 3000 RPM without triggering a...

Direct replacement/upgrade for the stock OEM ceramic restrictive catalytic converters, bolt-on Ultra High Flow HJS catalytic converters. FEATURES: Fits Porsche E3 Cayenne S 2.9L Twin Turbo Models...

Replace the worn-out or broken core of your factory Ferrari 328 catalytic converter(s) with a new high-performance HJS tri-metallic catalytic converter core. FEATURES: Fabspeed Motorsport can...

Replace the worn-out or broken core of your factory McLaren catalytic converter(s) with a new high-performance HJS tri-metallic catalytic converter core. FEATURES: Fabspeed Motorsport can replace...

  HJS Emitec GERMAN Super high-performance ULTRA High-flowing, direct bolt-on replacement for the bulky & restrictive factory catalytic 700 cell converters.         ...

Replace the worn-out or broken core of your factory Ferrari catalytic converter(s) with a new high-performance HJS tri-metallic catalytic converter core. FEATURES: Fabspeed Motorsport can replace the...

Replace the worn-out or broken core of your factory Ferrari catalytic converter(s) with a new high-performance HJS tri-metallic catalytic converter core. FEATURES: Fabspeed Motorsport can replace the...

Replace the worn-out or broken core of your factory Ferrari catalytic converter(s) with a new high-performance HJS tri-metallic catalytic converter core. FEATURES: Fabspeed Motorsport can replace the...

Replace the worn-out or broken core of your factory Porsche 911 3.0 /3.2L catalytic converter(s) with a new high-performance HJS tri-metallic catalytic converter core. FEATURES: Fabspeed Motorsport...

Replace the worn-out or broken core of your factory Ferrari catalytic converter(s) with a new high-performance HJS tri-metallic catalytic converter core.           ...

Replace the worn-out or broken core of your factory Ferrari catalytic converter(s) with a new high-performance HJS tri-metallic catalytic converter core.  FEATURES: Fabspeed Motorsport can...

Replace the worn-out or broken core of your factory Ferrari catalytic converter(s) with a new high-performance HJS tri-metallic catalytic converter core. This will require shipping the factory...

The very successful Cayenne was Porsche's solution for driving enthusiast who needed to carry additional passengers and cargo but didn't want to sacrifice driving excitement. The IPD plenums provide...

Replace the worn-out or broken core of your factory McLaren catalytic converter(s) with a new high-performance HJS tri-metallic catalytic converter core. FEATURES: Fabspeed Motorsport can replace...

Replace the worn-out or broken core of your factory Porsche Cup Car catalytic converter(s) with a new high-performance HJS tri-metallic catalytic converter core. FEATURES: Fabspeed Motorsport can...

Replace the worn-out or broken core of your factory Porsche catalytic converter(s) with a new high-performance HJS tri-metallic catalytic converter core. FEATURES: Fabspeed Motorsport can replace...

Replace the worn-out or broken core of your factory Porsche catalytic converter(s) with a new high-performance HJS tri-metallic catalytic converter core. FEATURES: Fabspeed Motorsport can replace...