Invidia - Subaru 15-21 WRX/STI - Gemini R400 Stainless Steel Cat-Back Exhaust System with Quad Titanium Rear Exit subaru-sti-2013 "The GS 3-port BCS provides

"The GS 3-port BCS provides rapid boost response while maintaining the ability to make acute adjustments via turbo dynamics

No tune required for install

On the compressor side

5i and WRX owners interested in a flap that will protect and deflect using direct application hardware

Cooling Fins & Black Finish

Invidia - Subaru 15-21 WRX/STI - Gemini R400 Stainless Steel Cat-Back Exhaust System with Quad Titanium Rear Exit subaru-sti-2013 "The GS 3-port BCS providesThis Invidia product is an excellent way to experience the improvement of the performance of your vehicle. Designed with utmost care and attention to detail, it provides unmatched durability and strength, even in extreme operating conditions. This top notch product is made from first rate materials to ensure long service life. If you choose Invidia, you can stay assured that you'll get the top quality product you can trust since Invidia does its