The Invidia Exhaust adapter/extension is a necessity to allow an Invidia cat back system to bolt directly up to a stock down pipe for the following models:
2004-2008 Subaru Forester XT (SG)
2001-2007 Subaru WRX
2001-2005 Subaru WRX STI
Made from high quality 304SS stainless steel, robotically welded with reinforced flanges. You can rely on Invidia for a perfect fit, every time.
Payments starting from $10.00 per week. 
