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    • Fabspeed releases Porsche 911 GT3 T304 stainless steel long tube race headers (991.1/991.2) - Dynojet results

      If you are going to pick up power on a GT3, which is not easy, you will want to modify the exhaust. A great place to start is with a well designed set of race headers and Fabspeed has a long tube race header design that applies to the Porsche 991.1 GT3 and Porsche 991.2 GT3 models.


      Pairing these headers with a solid dyno tune will extract that last bit of horsepower and torque you can get in naturally aspirated form.

      This graph is from a 991.1 GT3 RS 4.0 with the Fabspeed headers only on pump gas:


      Peak horsepower goes up to 474 at the wheels which is impressive but look at the gains at 4400 rpm. Torque goes up by almost 30 lb-ft and horsepower increases by 23.9 whp.

      Pair these headers with an aggressive high octane tune and cracking 500 whp in naturally aspirated form suddenly becomes feasible.

      Specs:

      • Fits all Porsche 991.2 GT3 vehicles world wide (2017+)
      • Increases throttle response and dramatically improves sports car 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
      • Simple bolt-on installation; easily removable and replaceable for emissions testing
      • Constructed from T304 stainless steel C.N.C. mandrel-bent tubing from our 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 Limited Warranty









      This article was originally published in forum thread: Fabspeed releases Porsche 911 GT3 T304 stainless steel long tube race headers (991.1/991.2) - Dynojet results started by Sticky View original post
      Comments 2 Comments
      1. Zombie1's Avatar
        Zombie1 -
        Has anyone tried spraying a baby shot of nitrous on these motors?
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Zombie1 Click here to enlarge
        Has anyone tried spraying a baby shot of nitrous on these motors?
        Not that I know of but they should take a decent shot without issue.