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GMG Racing Long Tube Headers 991 GT3/GT3RS
2017-current Porsche 991.2 911 GT3
2014-2016 Porsche 991.1 911 GT3
2016 Porsche 991.1 911 GT3RS
2016 Porsche 991 911 R
Engineered and developed on the track, the GMG WC Long-Tube headers were designed to provide a consistent increase in power throughout the powerband. The design stems from our professional racing experience in running Porsche 3.8L and 4.0L engines throughout a broad spectrum of motorsports. While this header increases overall power output, it’s focus in the low and mid-range powerband.
This header incorporates German-made HJS 200-Cell Metal-Matrix Sport Catalytic Converters. These dramatically cut down on obnoxious fumes inherent with race headers. HJS manufacturers the finest Catalytic Converters on the market today.
Innovative Design - While the header features a Long-Tube unequal-length design, it is still modular with the rest of the exhaust system. This means you will be able to keep your sport button function if you are racing at a noise-restricted circuit.
Fabrication - Each header is fabricated right here in Southern California. We use only the highest quality US-produced stainless steel tuning and laser-cut flanges. Each join is TIG welded and precisely normalized. The finished header features an exceptional finished and is peerless in its quality and durability.
Equal length runners
True 3-into-1 F1-style merge collector
German made high-flow 200 cell HJS HD catalytic converters
Increase horsepower and torque throughout rev range
TIG welded using US Made T304 stainless tubing
CNC machined extra-thick flanges to prevent warping
Direct bolt on replacement, no removal of bumper required
Sport button remains fully functional for everyday use
GMG Racing WC Exhaust Center Section
GMG RSR Harness - Rollbar
AWE SwitchPath Exhaust for Porsche 991.1 / 991.2 GT3 / RS
GMG Motorsport Front Adjustable Thrust Arm Kit
GMG Racing Porsche Seat Base
Fabspeed Sport Headers
GMG Racing RSR Oval Center Section
GMG Racing Wind Diffuser - Carbon Fiber
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