aFe SS 3-2.5in Cat-Back Exhaust | BMW 335i (E90/E92) (11-13) (49-36328-P) YMM_2001_2004_Mazda_Protege5_BJ Constructed from high-strength steel or

Constructed from high-strength steel or aluminum (depending on specific model)

Universal design accommodates a range of hose sizes

organic friction disc

The progressive spring rate is engineered to provide a smooth ride while offering enhanced handling characteristics

allowing for easy installation without compromising structural integrity

aFe SS 3-2.5in Cat-Back Exhaust | BMW 335i (E90/E92) (11-13) (49-36328-P) YMM_2001_2004_Mazda_Protege5_BJ Constructed from high-strength steel orMach Force XP 304 SS Cat Back Exhaust System with Split Rear Exit (49 36328 P) by aFe. Exhaust System Type: Cat Back. Exhaust Tubing Material: 304 SS. Main Tubing Diameter: 3" to 2. 5". Exhaust System Sound: Aggressive Loud. Get increased exhaust flow, more horsepower and torque, improved performance and lower exhaust gas temperatures with the aFe Mach Force XP Cat Back Exhaust System. aFe dyno tests every system for maximum gains, and constructs them