2017 Porsche 911 991 GT3 RS Coupe H6 4.0L
Retains the factory valve operation while providing a significant increase in power, weight reduction, and an eye-widening soundtrack.
Universal 3-Bolt flange for your custom exhaust project. Extra thick 10mm flange to avoid warping.
10X Entries For Our 25th Anniversary Sweepstakes!
This product was last offered at the strikethrough price on
06-13-2026
Lifetime Replacement
For those who want to increase tone, free up some power while dropping weight, but prefer to keep their factory side mufflers.
Direct replacement for the restrictive OEM headers, offering improved power and throttle response throughout the RPM range. Fits all Porsche 991 GT3 Cup vehicles 2017+
Made from 100% 304L aircraft grade stainless steel! Includes Dual Tips in Polished Titanium Finish.
Made from 100% 304L aircraft grade stainless steel! Includes Dual Tips in Brushed Titanium Finish.
Made from 100% 304L aircraft grade stainless steel! Uses your factory tips.
Lifetime Replacement
Made from 100% 304L aircraft grade stainless steel! Includes Dual Tips in Cerakote Black Finish.
304 Stainless Steel
Lifetime Replacement
Stainless Steel exhaust tips featuring swivel attachments for maximum adjustability. 2.5" Swivel Inlet / 3.5" Double Wall, Slant Cut Outlet
10X Entries For Our 25th Anniversary Sweepstakes!
Not vehicle specific. You MUST measure prior to purchasing!
This product was last offered at the strikethrough price on
06-13-2026
Lifetime Replacement
Increase HP/TQ and activate a full race exhaust with the flip of a switch, with our ECS Vacuum-Actuated Exhaust Cutout
10X Entries For Our 25th Anniversary Sweepstakes!
Stainless Steel exhaust tips featuring swivel attachments for maximum adjustability. 2.5" Swivel Inlet / 3.5" Double Wall, Slant Cut Outlet
10X Entries For Our 25th Anniversary Sweepstakes!
Not vehicle specific. You MUST measure prior to purchasing!
This product was last offered at the strikethrough price on
06-13-2026
Lifetime Replacement
Stainless Steel exhaust tip featuring swivel attachment for maximum adjustability. 2.5" Swivel Inlet / 4.0" Double Wall, Slant Cut Outlet
10X Entries For Our 25th Anniversary Sweepstakes!
Not vehicle specific. You MUST measure prior to purchasing!
This product was last offered at the strikethrough price on
06-13-2026
Lifetime Replacement
Stainless Steel exhaust tip featuring swivel attachment for maximum adjustability. 2.5" Swivel Inlet / 3.5" Double Wall, Slant Cut Outlet
10X Entries For Our 25th Anniversary Sweepstakes!
Not vehicle specific. You MUST measure prior to purchasing!
This product was last offered at the strikethrough price on
06-13-2026
Lifetime Replacement
Increase HP/TQ and activate a full race exhaust with the flip of a switch, with our ECS Vacuum-Actuated Exhaust Cutouts
10X Entries For Our 25th Anniversary Sweepstakes!
Stainless Steel exhaust tip featuring swivel attachment for maximum adjustability. 2.5" Swivel Inlet / 4.0" Double Wall, Slant Cut Outlet
10X Entries For Our 25th Anniversary Sweepstakes!
Not vehicle specific. You MUST measure prior to purchasing!
This product was last offered at the strikethrough price on
06-13-2026
Lifetime Replacement
