Invidia 15+ Subaru STI 4Dr Q300 Single Layer Stainless Steel Quad Tip Cat-Back Exhaust (HS15STIG2S) 1705 Keeping your transmission temps down

Keeping your transmission temps down as you push your BMW G8X M3/M4 hard on the street or track

Designed specifically to function in any environment and withstand any abuse

We maintained as large a volume as possible all the way to the front of the engine bay and derestricted the front of the duct by creating an opening just behind the bumper where the bonnet would close

this HPS silicon intercooler Turbo Hose Kit Boot can withstand the harsh high temperature and high pressure operating conditions of the engine yet still maintaining peak efficiency during competition or daily driving

Invidia 15+ Subaru STI 4Dr Q300 Single Layer Stainless Steel Quad Tip Cat-Back Exhaust (HS15STIG2S) 1705 Keeping your transmission temps downThe flat bottom shaped muffler design results in improved high speed aerodynamic performance. The muffler inside contains continuous piping design and use of Advantex material that results in an excellent free flow exhaust with optimized back pressure, giving greater horsepower, torque gains and a rich deep sporty sound. This Invidia product is an excellent way to experience the improvement of the performance of your vehicle. Designed with utmost care