Performance Gains: This system produced gains of up to +18 HP and +27 lbs. x Ft. TQ., as measured on our in-house dyno. 3" - 2-1/2" 304 Stainless Steel Construction: This cat-back exhaust system is...

Brushed 304 SS Construction: The performance down-pipe back exhaust system is constructed of 3" to 2-1/2" mandrel-bent, brushed 304 stainless steel tubing for maximum performance, corrosion...

MACH Force-XP 2-1/2 IN 304 Stainless Steel Cat-Back Exhaust w/ Polished Tips BMW M3 (E46) 01-06 L6-3.2L S54 BMW M3 (E46) 01-06 L6-3.2L S54

This cat-back exhaust system is constructed of 3 IN - 2-1/2 IN mandrel-bent 304 stainless steel tubing for maximum strength and durability. This system features a high-flow stainless steel...