SPT Exhaust made by BOSAL its 30% off right now and I have it in stock. FULL STAINLESS STEEL CAT BACK
only $314.96 after the discount. 02-04 WRX SOA8377800
only $346.50 after the discount 1998-2001 2.5rs SOA8377500
2002-2004 WRX Muffler (Center Pipe Included) (Bosal)
Q. What are the inlet and outlet sizes?
A. Inlet pipe dia. =76mm, Outlet Pipe dia = 90mm
Q. What are the sound decibel differences?
A. Noticeable increase from stock.
Q. What material are they made of?
A. Durable Stainless Steel (T304).
Q. Who manufactures them for Subaru?
A. Bosal - North America.
Q. What process is done on them that make them better than the others?
A. The muffler is specifically designed to match the performance of the turbo WRX engine.
Q. Is there a horsepower increasing?
A. Minimal. Horsepower cannot be noticeably increased because of the Performance Muffler alone.
Q. Is there a weight difference on these VS the stock?
A. 1kg lighter.
Q. Is there a Chamber and/or Scavenging difference?
A. The Performance muffler is made with the same back pressure as the OEM WRX to maintain the performance parameters.