Protect your Gen 2 B58 engine from oil blow-by with the Burger Motorsports Oil Catch Can, tailored for G-chassis BMW M240i, M340i and M440i models. By capturing oil vapour before it reaches the intake system, this PCV catch can helps keep intercoolers, charge pipes and intake valves cleaner, supports consistent performance and maintains the factory closed-loop PCV operation. Available in the UK from Nforcd, this is a proven upgrade for both standard and tuned B58 cars.
- Designed specifically for Gen 2 B58 G-chassis fitment for M240i, M340i and M440i
- Precision CNC machined from high-grade anodised black aluminium with zero welding
- Non-clogging triple-baffle air oil separation for reliable capture
- High-flow internal design with large 16 mm plus inlet and outlet that exceed OEM PCV sizing
- Retains the factory fully closed-loop PCV system with no vent-to-atmosphere odour
- Optimised mounting and short line runs for efficient vapour condensation and a stealth look
- Simple servicing via unscrewable base or 1/8 NPT drain plug recommended emptying every 3 to 6 months
- Installation in around 20 minutes with all required hardware fully reversible
- Made in the USA can is guaranteed for the life of the vehicle
Vehicle fitment Gen 2 B58
- BMW 2 Series: 2022+ G42 M240i and M240i xDrive
- BMW 3 Series: 2019 to 2024 G20 and G21 M340i and M340i xDrive
- BMW 4 Series: 2021 to 2024 G22, G23 and G26 M440i and M440i xDrive including Gran Coupé
Fitment notes
- Requires either the BMS B58 G20 Billet Intake or the BMS B58 Competition Enclosed Intake to fit
- If retaining the factory airbox, use the BMS G20 B58 intake muffler delete to create the necessary space
Dimensions and capacity
- Height with lid: 111 mm 4.4 in
- Can diameter: 63.7 mm 2.5 in
- Lid length back to nozzle end: 101 mm 4 in
- Nozzle outer diameter: 19.2 mm 0.75 in
- Nozzle inner diameter: 17 mm 0.669 in
- Fluid capacity: up to 162.6 mL 5.5 fl oz
What’s in the box
- BMS G-chassis B58 Oil Catch Can
- Billet B58 mounting bracket
- Billet B58 90 degree 19 mm nipple to PCV bracket adapter
- Heavy duty formed silicone inlet hose
- Heavy duty straight 3 in silicone outlet hose
- Bracket to can screws M5 x 0.8 x 12 mm internal hex
- For cars with factory intake: BMS B58 intake muffler delete
Optional upgrades
- Transparent catch can base for quick visual level checks not suitable for regions that frequently drop to 0°C or below
- B58 Oil Filler Cap Connection Kit adds a second connection at the oil cap so both the crankcase vent and valve cover breather can route to the catch can for enhanced oil vapour capture
Choose Nforcd for fast UK supply and expert advice on BMS upgrades for the B58 platform. We know this kit well and it has been a popular choice with our BMW customers seeking a clean, efficient PCV solution. Professional fitting is available at Nforcd in Warwickshire request a quote via Sales@nforcd.com.




