MBRP 15-21 Subaru WRX 2.0L/STI 2.5L/ 11-14 Sedan 3in Cat-Back Single Rear Exit - T304 - S4803304 Y Pipes 64% cfm Flow gain

64% cfm Flow gain

aFe Power's intercooler tubes are constructed from 2-1/2" (Hot Side) and 3" (Cold Side) mandrel-bent aluminum tubing for maximum flow then

Fits Cabrio / Convertible models only

3" mandrel-bent

Additional Fueling Is Not Required

MBRP 15-21 Subaru WRX 2.0L/STI 2.5L/ 11-14 Sedan 3in Cat-Back Single Rear Exit - T304 - S4803304 Y Pipes 64% cfm Flow gainTHE ONLY EXHAUST YOU"LL EVER NEED MBRP Armor Pro Series exhaust systems are backed by a Lifetime Warranty and crafted out of T304 Stainless Steel the most durable material grade that money can buy. The T304 Stainless Steel tubing is easy to clean and maintain. Its the obvious choice for you if you operate your vehicle in extreme conditions. All of the tubing is mandrel bent for maximum exhaust flow. Mandrel bending ensures no rippling in the bends.