BMS N55 Downpipe 135i 335i 335xi $369.00
Fits 2011+ BMW 135 & 335. We are pleased to introduce the BMS N55 catless downpipe. Not only does removing the factory downpipe eliminate a huge exhaust restriction allowing more power but it also provides a deeper and more exotic exhaust tone. Average gains are 15-20hp and 20-30tq to the wheels with the additional benefit of reduced turbo lag. This 3.5" catless downpipe features CNC flanges and stainless steel construction for long life.
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CPE N55 5" Downpipe 135i 335i 335xi $599.00
Simply the largest and highest quality downpipe available for your N55 motor. The piping is 5", the largest in the industry, for maximum turbo spool with minimal exhaust drone. And unlike other more expensive hand made downpipes welded together from various pieces of metal ours utilizes a one piece cast belmouth for a perfect fit with extra strength where it's needed at the turbo connection.
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NEW! F30 335 4" Catless Downpipe $590.00
By replacing the factory downpipe/catalytic converter with our Competition Series 4" Catless Downpipe, more power is unleashed! Our dyno testing has shown around 14-16whp average peak gains and upwards of 24wtq peak gains! While peak horsepower is nice to look at on dyno charts, what's more important is the power curve. If you look at the dyno charts, torque hits MUCH earlier and harder. The torque curve is BROADER throughout the RPM band.
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NEW! N20 4" Catless Downpipe $495.00
By replacing the factory downpipe/catalytic converter with our Competition Series 4" Catless Downpipe, more power is unleashed! Our dyno testing has shown around 14-16whp average peak gains and upwards of 24wtq peak gains! While peak horsepower is nice to look at on dyno charts, what's more important is the power curve. If you look at the dyno charts, torque hits MUCH earlier and harder. The torque curve is BROADER throughout the RPM band.
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CPE N54 Downpipes 135i 335i 335xi  $579.00
cp-e™ is very proud to offer cast stainless steel performance downpipes for the BMW N54 twin-turbo engine. The cp-e™ downpipes are the product of nearly 10-months of design work, and represent the latest in reverse-engineering and manufacturing technology. The downpipes are constructed from heavy gauge American-made 304-stainless steel, and also carry a lifetime warranty. Cats also available.
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Dr Euro Downpipe F10 535 & X5 N55 $599.00
Fits F10 535 and X5 N55. Dr Euro introduces the one and only 3.5" Catless downpipe for the F10 & X5 N55 platform - Made completely in the USA from 304 stainless steel. Dynojet numbers show an increase of 19WHP and 18WTQ – a 6.5% increase over stock (HUGE increases at 3500rpm of 24wtq & 36wtq).
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CPE 135i Catback Exhaust System $699.00
Fits 2008+ 135i including N54 & N55 motors. Bolt on more horsepower & torque! The Perfect blend of Performance, Sound, and Appearance. It gives the 135i a more aggressive character without becoming overwhelming.
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