M Performance Muffler for 2103 BMW 335i xdrive Sportline
BMW 3 series N55
August 6, 2016
M Performance Axle Back
Very pleased with the M Performance muffler on our 2013 335i. Saved approximately $500 compared to list price by buying the parts online. Dealer charged $200 to install. Great tone particularly in sport mode under heavy acceleration. The exhaust modification in combination with the M Performance Power Kit has dramatically transformed throttle response and acceleration. I am guessing that the combination is worth a gain of 35-40 horsepower. Does anyone know for certain?