aFe Twisted Steel Downpipe (Race) SS-304 11-13 BMW 135i/335i L6-3.0L (t) (N55)

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  • Regular price $649.99


This race down pipe uses a unique resonance chamber to capture sound waves and minimize in-cab resonance producing an aggressive tone on throttle with a smooth sound at cruising speeds without effecting performance. In recent testing, the race version down pipe produced +14 horsepower and +39 lbs. x ft. of torque. The high-flowing down pipe is designed using mandrel-bent, 304 stainless steel tubing for optimum flow resulting in added horse power and torque. The down pipe is 100% hand TIG-Welded and uses a 3-1/2" into 4" stepped design that increases exhaust velocity and eliminates low pressure drops which helps to scavenge the exhaust for increased intake charge and more power.

This Part Fits:

Year Make Model Submodel
2011-2013 BMW 135i Base
2013 BMW 135is Base
2011-2013 BMW 335i Base
2011-2013 BMW 335i xDrive Base
2013-2015 BMW X1 xDrive35i