aFe Racing Cat-less Downpipe - E82 135i, E9X 335i N55

High-performance race-version downpipe with dyno proven gains for your N55-powered 335i or 135i

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The aFe Elite Twisted Steel Race-Version Downpipe for your N55-powered E9X 335i or E8X 135i delivers a potent 14 Hp and 39 ft-lb of dyno-proven power! This high-quality, free-flowing downpipe is constructed of durable, mandrel-bent 304 stainless steel tubing for long, trouble-free life, and it weighs in at just 10 pounds.

Designed for hassle-free installation and maximum performance, aFe’s downpipe features a 3.5” into 4” stepped design for maximum exhaust velocity and increased torque. This non-catted, race-version downpipe includes a unique resonance chamber for better in-car sound quality versus other downpipes on the market. Strength and durability are enhanced with 100% TIG welding throughout. Brackets and hardware included.

  • Dyno-proven gains of 14 Hp and 39 ft-lb
  • Durable construction with 304 stainless steel tubing
  • Bolt-on fitment for hassle-free installation
  • 3.5” to 4” stepped design for maximum performance
  • 100% TIG-welded 

Fitment for the following vehicles with N55 engine:
2011-2013 E82 135i, 135is
2011-2013 E90/E92/E93 335i, 335xi
2009-2015 E84 X1 35xi

Notice of Emissions Non-Compliance. Removing, disabling, or altering emissions equipment on a pollution-controlled road vehicle is illegal. Installing devices or software that trick, disable, or modify emissions controls and monitors on a pollution-controlled road vehicle is also illegal. This product is sold only for racing, competition, track, or other off-road use. It's use is prohibited in any motor vehicle that is subject to emissions inspection or control. It is not legal for sale or use in California on any pollution-controlled motor vehicle.

BMW Fitments:

1 Series
E82 / E88 (08-13) > 135i
E82 / E88 (08-13) > 135is
E90 / E91 / E92 / E93 (06-13) > 335i
E90 / E91 / E92 / E93 (06-13) > 335xi
X1 Series
E84 X1 (2013-2015) > X1 35i xDrive
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