VRSF BMW B58 4.5" Catless Downpipe (M140i, M240i, 340i, 440i & 550i)
We are proud to introduce the VRSF 4.5" catless downpipe for your B58 M140i/M240i/340i/550i/440i/740i & xDrive variants. This 4.5" downpipe is the best value modification available. 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 VRSF catless downpipe feature a full 4.5" stainless steel design as well as a CNC 304 grade stainless steel flange that offers a smooth transition from the turbo to the mid pipes. All VRSF downpipes are hand crafted from SS304 grade stainless steel and include a lifetime warranty as well as our "No Hassle" satisfaction guarantee (includes fitment).
- Made from hand crafted, TIG welded 4.5" 304 grade stainless steel.
- Smooth radius bends to decrease turbulence and increase flow.
- Fits the stock catback as well as all aftermarket catbacks that mate up with the OEM downpipe.
- CNC SS304 Stainless Steel Flange.
- Gains from 25-30hp with tune.
- VRSF Lifetime Warranty
- Fits both LHD & RHD with no modifications needed.
To ensure the part(s) you have ordered fits your vehicle, we run a compatibility check prior to dispatch. We can do this either using your registration number(UK) or the last 7 digits of your VIN. Simply enter your car details prior to checkout.
2016+ F32/F33/F36 BMW 440i & 440i xDrive
Free Next Day UK Delivery
Free next day UK delivery if in stock and ordered before 11am! We can also ship worldwide, simply contact us for a quote.
VRSF Lifetime Warranty
VR Speed Factory (VRSF)
65cm x 16.5cm x 15.5cm
B58 4.5" downpipe
Good quality and fits perfect no messing around with anything. Also fitted a 90 degree o2 spacer (until I get the jb4) and no eml light at all and covered over 1k miles.