VRSF B58 4.5 inch High Flow Sports Cat Downpipe - Brushed Finish - BMW M140i, M240i, 340i, 440i, 540i, 740i and xDrive
Unlock serious performance and sound from your BMW B58 engine with the VRSF High Flow Sports Cat Downpipe. This premium 4.5 inch SS304 stainless steel downpipe with a brushed finish is one of the most effective power upgrades for the B58 platform, delivering faster turbo spool, reduced back pressure and a deeper, more aggressive exhaust note. We use this hardware on our own B58 builds and our customers love the gains, the fitment and the refined tone.
Perfect for BMW M140i, M240i, 340i, 440i, 540i and 740i models including xDrive, this high flow 200 cell sports cat is designed to maximise flow while maintaining excellent build quality and compatibility. VRSF downpipes are renowned for value, reliability and performance gains per pound, making this an ideal choice for enthusiasts chasing Stage 1 and Stage 2 style results with proper hardware.
Why choose the VRSF B58 Sports Cat Downpipe
- High flow 200 cell sports cat maximises exhaust flow and reduces back pressure
- Faster turbo spool and improved throttle response
- Noticeable power and torque gains, with 25 to 30 hp achievable with tuning
- Deeper, more aggressive exhaust note without excessive drone
- CNC machined 304 grade stainless steel turbo flange for a smooth transition to the mid pipes
- TIG welded 4.5 inch SS304 stainless steel construction for strength and durability
- Smooth radius bends to minimise turbulence and increase flow
- Direct bolt-on fitment for both RHD and LHD cars with no modification required
- Compatible with the factory cat-back and all popular aftermarket exhaust systems
- Brushed finish for a clean OEM plus look
Fitment - BMW B58 models
- 2016+ F20 F21 BMW M140i and M140i xDrive
- 2016+ F22 F23 BMW M240i and M240i xDrive
- 2016+ F30 F31 BMW 340i and 340i xDrive
- 2016+ F32 F33 F36 BMW 440i and 440i xDrive
- 2016+ G30 BMW 540i and 540i xDrive
- 2016+ G11 G12 BMW 740i and 740i xDrive
Built to perform
This VRSF B58 downpipe features a full 4.5 inch design for outstanding flow. The precision CNC 304 stainless flange and smooth-radius TIG welded bends ensure an optimal path from turbo to mid pipes, minimising restriction and maximising performance. VRSF downpipes are hand crafted from SS304 grade stainless steel for long-term reliability.
Warranty
- High flow catted versions include a 1 year warranty
- Race versions carry a VRSF lifetime warranty
- Includes VRSF No Hassle satisfaction guarantee, including fitment
Professional fitting available
Want this installed correctly the first time? Book fitting with Nforcd in Warwickshire. Request a quote at Sales@nforcd.com and our team will get you sorted.
Availability and shipping
We aim to keep these in stock and ready to ship. Due to the popularity of the B58 sports cat, there can occasionally be a small delay of a couple of days. Any questions, email Sales@nforcd.com.
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