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BMW N55 3.5" Catless & Catted Downpipe (135i, 335i & X1)


  • £299.99
    exc. VAT £249.99
  • 2 reviews


At ML Performance, we are proud to introduce you to the 3.5" catless downpipe for your N55 135i,  335i & X1. The 3.5" downpipe is the best value downpipe available on the market. By eliminating the restrictive catalytic converter in the factory downpipe, back pressure is reduced significantly which results in faster spool, an increase in power & a more aggressive exhaust note.

The catless downpipe feature a full 3.5" stainless steel design and are hand crafted from SS304 grade stainless steel and includes the ML lifetime warranty. Grade 12 installation hardware and high quality steel gaskets are also included with the purchase.

You may also wish to add the N55 Downpipe Fix to remove the Check Engine Light.

Note: The N55 downpipe now comes with ceramic coated free of charge. We use Cerakote's best thermal barrier coating which helps keep the hot air inside the exhaust and out of the engine bay which decreases overall intake air temps along with engine and transmission oil temps.



  • Made from hand crafted, tig welded 3.5" 304 grade stainless steel.
  • Smooth radius bends to decrease turbulence and increase flow.
  • CNC SS304 Stainless Steel Flanges.
  • Gains from 25-30hp with tuned.
  • Gaskets & mounting hardware included.
  • Lifetime Warranty
  • Compatible with RHD and LHD cars.


Compatibility (Fits both RHD & LHD)

1 Series E82 Coupe (N55) from 2011 - 2013

3 Series E90 Saloon 335i (N55) from 2010 - 2013

3 Series E91 Estate 335i (N55) from 2010 - 2013

3 Series E92 Coupe 335i (N55) from 2010 - 2013

3 Series E93 Convertible 335i (N55) from 2010 - 2013

X Series E84 X1 (N55) from 2012 - 2015


ML Lifetime Warranty (Non-Transferable)


Part Number


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