The Berk Technology BMW 135i and 1M midpipes feature larger diameter 2.5 inch mandrel bent piping for increased horsepower, torque, and exhaust flow. Engine exhaust gas temperatures (EGT's) and turbo lag is reduced resulting in greater engine efficiency. Straight through resonators with zero restrictions gives your BMW 135i a more aggressive exhaust note while still maintaining a smooth tone. Reduced exhaust "drone" at highway speeds while improving performance and reducing weight at the same time. Removes the small restrictive OEM resonator box mounted at the rear of the OEM midpipe for a more free flowing exhaust path. Removes secondary catalytic converters and is for off road use only. Supports both twin turbo N54 and single turbo N55 BMW 135i variants and also BWM 1M. Includes all necessary hardware and/or gaskets for installation.
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