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4" WB/ Crew Cab With Short Bed (5' 9") 147
5-3in 409 SS Steel Cat-Back Exhaust w/Polished Tips
Borla testing reveals power increases that most likely are a direct correlation to the increased air flow the Borla system exhibits
Replace the small muffler behind the primary muffler in the "S-Type" system with Polyphonic Harmonizer 60680 to attain the "ATAK" sound level (louder than "S-Type")
Z51 & Z06: Coupe and Convertible
aFe MACHForce XP Exhaust Cat-Back SS-304 08-13 BMW M3 (E90) V8-4.0L Wheel Locks 4" WB/ Crew Cab WithaFe MACHForce XP Exhaust Cat Back SS 304 08 13 BMW M3 (E90) V8 4. 0L This system is constructed of 2. 5 in. diameter, mandrel bent, TIG welded, 304 stainless steel, brushed finish tubing and uses all factory mounting locations for an approximate 1 hour install time. In recent testing, this exhaust system produced 12 horsepower and 11 lbs. x ft. of torque. This unique system utilizes 3. 5 in. diameter 304 polished laser etched quad tips that fit
