When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Last year we developed our Long Tube Competition Race Header System for the 991 GT3 and 991 GT3RS. Now... we're bringing it down the line to the 997.1 and 997.2 GT3 and GT3 RS's!
Fabspeed’s Long Tube Competition Race Header System for the Porsche 997.2 GT3 / GT3 RS will get you out of the corner fast and maximize your pulling power on the straights! Designed for track and off-road use, our Long Tube Competition Race Headers with Side Muffler Bypass Pipes provide maximum exhaust flow from the engine cylinders straight into the exhaust system.
Our design incorporates the longest possible runners for this application for maximum power!
Longtime Porsche Owner Bill Gast puts his Long Tube Competition Race Headers to good use... every day--his 997.2 GT3RS is his daily!!
What is the power increase over the factory headers/side mufflers? Also, are there any issues with a CEL with removing the cats?
Thanks for chiming in FastAlpine! We are working with Bill Gast, the gentleman holding the headers to bring his car in for a dyno run. We'll have the exact numbers soon! That being said, there are a number of engines in the 997 variants of the GT3 and RS models, so we will try our best to get numbers for as many of the cars as we can. The 997.1 GT3 and RS start off the line with a 3.6, the 997.2 GT3 and RS use the 3.8, and the 997.2 RS 4.0 uses, well, the 4.0 : )
Consequently however, we do know exactly how much power this system will make on the 991 RS 4.0! Combined with a tune our Longtube Header design makes an astounding +38 HP and +26 TQ. We expect power gains to be similar percentage gains of factory whp.
Regarding your question about CELs: As you are removing the cats from the system, you will get a CEL from catalyst inefficiency if you do not tune it out with an Accessport and our Protune. We offer Catted O2 Spacers as an alternative to help address the issue, but I would recommend running these headers with a Protune in the first place as a tune will assist you in maximizing the power potential of your newly catless system.
Here's the dyno chart we have from our runs on the RS 4.0 for reference!
Our Long tube race headers are truly the best mod in terms of Bolt-on gains. Our test car put down 38+ to the Wheel, on top of picking up a much more aggressive tone.
I have these on my sharkwerks 4.1 997 gt3 and love them. I paired these with the fabspeed side muffler bypass and JCR superlite rear bypass. Sounds like a cup car.
I have these on my sharkwerks 4.1 997 gt3 and love them. I paired these with the fabspeed side muffler bypass and JCR superlite rear bypass. Sounds like a cup car.
You've gotta post some clips, sounds like a beast!
10-18-2017, 06:28 PM
Fabspeed Motorsport || 997.1 & 997.2 GT3 GT3RS Long Tube Competition Race Headers!
Stay tuned for more information and check out the webpage here: 
