VRSF 4.0″ Catless Downpipe for N55 535i, 640i, 740i and X5/X6 F15/F16 (EWG)

The VRSF 4.0″ downpipe upgrade is THE best bang for the buck mod available for your N55 535i, 640i, 740i and X5/X6 F15/F16 (with Electronic Wastegate). By eliminating the restrictive catalytic converter in the factory downpipe, back pressure is significantly reduced which results in faster spool, an increase in power & a more aggressive exhaust note. Our downpipe also features a unique CFD optimized cast merge collector which offers the smoothest turbo to mid pipe transition available.

Every VRSF downpipe is hand crafted from tig welded, mandrel bent, 304 grade stainless steel. High quality replacement hardware and mid-pipe gaskets are included although we highly recommend purchasing the optional turbo clamp and gaskets if your car has more than 60k miles.

• Made from hand crafted, tig welded 4.0″ 304 grade stainless steel.
• Compatible with both right hand drive and left hand drive vehicles.
• CFD optimized, cast stainless steel merge collector.
• Smooth radius bends to decrease turbulence and increase flow.
• CNC SS304 stainless steel flanges.
• Gains from 25-30hp with tune.
• Gaskets & mounting hardware included.
• VRSF lifetime warranty

This item fits the following BMWs:

2015 – 2016 BMW 535i & 535Xi F10/F11 (Electronic Wastegate only)
2015 – 2016 BMW 535i & 535Xi GT F07
2015 – 2017 BMW 640i F12/F13
2011 – 2015 BMW 740i & 740LiX F01/F02 (Electronic Wastegate only)
2014 – 2018 BMW X5 35i F15 (4.0″ – Electronic Wastegate)
2015 – 2019 BMW X6 35i F16 (4.0″ – Electronic Wastegate)