Fabspeed Porsche 911 Carrera SC 3.0 Sport Performance Package (1976-1983) Style:Outlet Type: Dual Outlet, Application: RACE Includes Catbypass and easy-to-install exhaust system perks

and easy-to-install exhaust system perks like:   Optimized Exhaust Scavenging Enhanced Throttle Response Noticeable Power Gains Minimal/Undetectable Drone Superior Corrosion

Don't put a cheap fragile cast aluminum POS on your GT4

or some other device

Please see the example photos below

FEATURES: Fits all Porsche 991 GT3 / GT3 RS vehicles 2014-2016 worldwide Constructed from CNC cut T304L stainless steel Designed from 3D scans of the OEM muffler so we can achieve perfect bolt-on fitment Will not break or crack like OEM GT3 mufflers do Incorporates our signature cast X-pipe for superior flow and exhaust scavenging Paired with our Side Muffler Bypass Pipes this muffler adds +27 ft/lbs of TQ and +16 WHP or +18 HP at the crank

Fabspeed Porsche 911 Carrera SC 3.0 Sport Performance Package (1976-1983) Style:Outlet Type: Dual Outlet, Application: RACE Includes Catbypass and easy-to-install exhaust system perksComplete high performance exhaust and intake upgrade for the 911 Carrera SC 3. 0 cars. INCLUDES: Maxflo Performance Exhaust System 200 Cell Sport Catalytic Converter or European Pre Muffler Catbypass Pipe CUP High Performance Airbox Cover BMC F1 Performance Air Filter FEATURES: Fits all 911 Carrera SC 3. 0 vehicles (1976 1983) Dramatically improves throttle response and overall power throughout the RPM range Adds +15 hp with Sport Cat or Cat Bypass