Stainless Works 2003-04 Mercury Marauder Headers 1-5/8in Primaries 2-1/2in High-Flow Cats

2003-04 Mercury Marauder headers and 2-1/2″ catted pipes. 1 5/8″ primary tubes with 3″ OD collectors. Long tube design makes great power and mid range torque. 3/8″ s/s CNC laser cut flanges are port matched to the cylinder head for optimal flow and maximum performance. Designed for use with factory exhaust system.