Berk Technology - 4" Catless Downpipe - N55 Variants

"Track Tested, Dyno Proven" products from a champion pedigree now available for your road going street car.

The same championship winning and record setting parts that power the Berk Technology BMW's are now available for your street machine. The master craftsmen at Berk Technology are proud to introduce their 4" downpipe for the new BMW N55 single turbo engine.

Our ultra low backpressure design adds a dyno proven 23HP and 30ft/lbs of torque without any additional tuning devices or piggybacks. Engineered and dyno verified to be the highest flowing and lowest restriction downpipe on the market. In addition to the added horsepower the Berk Technology N55 4" downpipe will give your stock exhaust a more aggressive tone under throttle while still maintaining daily driving civility at cruising speeds.

Features
-4" downpipe
-23HP gain over stock at the same boost level with no tuning devices
-Straight shot design for zero restriction and high velocity
-Largest possible tubing for quicker spool
-Zero taper on flange at turbo for largest possible opening
-Uses as much 4" tube as possible
-100% Made in the USA

Models Supported
2010+ E9X 335i
2010+ E82/8 135i