Description
Free ground shipping.
These headers are built to order. Our in stock status does not include build time. Actual delivery time can be 1-3 weeks.
Gain 38 horsepower and 28 lb/ft of torque while losing 30 pounds.
Designed for racing, track events, and off-road use. Fabspeed's long tube race headers with integral side muffler bypass pipes are designed to maximize horsepower and torque by increasing exhaust flow from the engine cylinders straight into the exhaust system.
This system was incrementally dyno developed to maximize power throughout the entire power band.
When the first 991 GT3s landed on North American soil, Fabspeed's engineering team immediately got to work and developed a race header to maximize the performance of this track weapon.
Their original medium tube modular header design was very successful, but they were looking for more power.
Consequently, they were approached to enhance a GT3 RS and welcomed the opportunity to refine their long tube header design further. After extensive development, including dyno and track testing of various designs, they uncovered the correct formula to maximum performance and exhaust flow.
There is no better designed and engineered race header system for the Porsche 991 GT3 / GT3 RS / 911 R available worldwide. The Fabspeed Motorsport GT3 header was developed in conjunction with the racing engineers at Burns Stainless LLC Costa Mesa California.
Burns Stainless is a World leader and innovator in stainless steel header design. With years of experience testing and building high velocity merge collectors.
POWER:
Fabspeed developed these headers to make power with or without an ECU tune. While the hardware made significant gains alone, we found its full power potential was realized when combined with a proprietary tune.
As tested on a GT3 RS, the long tube race headers with ECU tune adds 38 whp and 26 lb/ft of torque at 7650 RPM.
Further down the rev range, this header system gives you major mid range grunt: 24 whp and 28 ft/lbs of torque at 4500 RPM.
Without the ECU tune you can expect solid gains of 24 whp and 16 lb/ft of torque at 7650 RPM and 23 whp and 26 lb/ft of torque at 4500 RPM.
BURNS STAINLESS COLLECTORS:
Bringing these headers to an end are Burns stainless collectors which combine high flow and high velocity to increase and broaden an engine's torque curve.
The decision to utilize Burns Stainless collectors was easy. They offer superior design and craftsmanship, as well as 30 years of proven performance in motorsport competition.
- GT3 header system was engineered with Burns stainless proprietary X-design parametric engine/exhaust design computer program
- Completely hand finished inside for proper flow and maximum power gains
- Motorsport proven and adopted by NASCAR engine builders along with world championships in Indycar racing, Formula Atlantic, ALMS, FIA-GT, and Grand Am. Burns stainless is the very best.
SIDE MUFFLER BYPASS PIPES W/ HELICAL VALVES:
To provide the ultimate track solution for the 991 GT3/GT3 RS/911 R, Fabspeed is now utilizing premium Helical valves. They chose to use Helical Valves for their unprecedented quality, which has been proven by many OEM manufacturers such as Porsche, McLaren, Ferrari, Lamborghini, and more.
- Increased reliability - proven in racing and high volume OEM use
- High-temperature bearings at both ends of the butterfly spindle including Inconel T625 stainless steel
- Cast stainless steel valve body with stiffening ribs for ultimate durability and cooling.
FEATURES:
- Fits all 2014-16 Porsche 991 GT3/GT3 RS/911 R vehicles
- Fabspeed headers alone add 24 whp and 28 lb/ft of torque at 4500 RPM
- Fabspeed headers with ECU tune add 38 whp and 26 lb/ft at 7650 RPM with ECU tune
- Increases throttle response and dramatically improves sound
- 40 lb 18.1 Kg weight decrease from the rear of the car for much better handling and inertial performance.
- CAD designed and incrementally Dynojet developed and tested for maximum performance gains
- Intended for racing competition events ONLY. Never to be used on the public roads. Not CARB approved. Not EPA approved.
- Simple bolt-on installation; easily removable and replaceable for emissions testing
- Constructed from T304 stainless steel. Mandrel-bent tubing from an in-house, Unison mandrel bender.
- Hand TIG welded and backpurged by skilled Fabspeed craftsmen with over 100 years combined experience.
- All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty
INSTALLATION NOTE: To ensure proper header seal, after initial heat cycle, tighten all exhaust bolts to the OEM torque specs.