Pypes Exhaust SMC22S Street Pro 2-1/2" Diameter Stainless Steel Cat-Back Exhaust System with X-Pipe for Dodge Challenger V6 PYPES PERFORMANCE EXHAUST SMC22S 08- Challenger 3.5L 2.5i Cat Back Exhaust w/XPipe Dimensions in Inches (LxWxH): 60 x 60 x 15.25