A'PEXi RS Evolution Dual Exit Catback Exhaust 2011-2014 WRX Hatchback / 2008-2014 STI Hatchback

The RS Evolution Muffler is a hybrid muffler uniting the power and free-flowing characteristics of our N1 Muffler with the quiet and discreet sound output of our Hybrid Megaphone Evolution Muffler. A combination of an A'PEXi original patented megaphone piping structure design and larger piping diameters to produce ultimate performance for your turbo-charged engine.PRODUCT FEATURES:- High-level of quality using tig-welded SUS304 stainless steel uniting quiet performance with high-power performance gains- Matched and manufactured for select chassis- Patented Megaphone piping structure to produce excellent torque and throttle response throughout the powerband. This piping design allows for a swirling exhaust gas flow effect that has for years produced proven results- A'PEXi logo stamped exhaust tip. Note: A OEM Downpipe to 3in Cat Back Adapter may be necessary if the diameter of the new cat-back exhaust systems piping is different from the stock system, or if there are compatibility issues between the new components and the existing downpipe.