Forge Motorsport BMW B58 Charge Pipe / Boost Pipe / Turbo Outlet Upgrade Kit – Aluminium Intercooler Piping, WMI/Meth Bung – Fits M140i M240i 340i 440i 540i 740i X3 X4 (F20 F21 F22 F23 F30 F31 F32 F33 F36 G30 G31 G32 G11 G12 G01 G02)

Uprated charge air pipework for BMW B58 turbo engines

Unlock smoother boost delivery, stronger reliability and cleaner throttle response on your B58 with this premium aluminium charge system. Built to replace the fragile factory plastic ducting, this high-flow alloy upgrade is the go-to choice for M140i, M240i, 340i, 440i, 540i, 740i, X3 and X4 owners looking for dependable performance on stock or tuned cars.

Why enthusiasts choose this upgrade

• Bigger bore for increased airflow compared to the factory pipework, ideal for remaps, Stage 1 and Stage 2 tunes
• Precision CNC billet adapters for a secure, leak-free connection under higher boost
• One-piece mandrel-bent alloy tubing with a smooth internal radius for minimal turbulence and rapid spool
• Integrated water methanol injection bung with supplied blanking plug for future WMI setups
• Complete kit with clamps and hardware for a straightforward direct-fit installation
• Tough powdercoat finish for durability and a clean OEM-plus look in the engine bay
• Fluorosilicone-lined performance hose that is OAT compatible and resistant to oil mist
• Designed and manufactured in Great Britain with a lifetime warranty

We have installed this kit on multiple B58 platforms and the feedback is consistently excellent. Sharper boost response, stronger peace of mind under load and a tidy under-bonnet appearance make it a must-have supporting mod for any tuned B58.

Perfect for

• Preventing boost leaks on remapped cars
• Supporting hybrid turbo upgrades
• Track days and spirited road use
• Daily-driven reliability where the stock plastic pipe can fatigue

Vehicle compatibility

BMW models with the B58 engine:

• 1 Series F20 F21 LCI 09/2015 - 08/2018
• 2 Series F22 09/2015 - 06/2017
• 2 Series F22 LCI 09/2016 - 08/2018
• 2 Series F23 09/2015 - 06/2017
• 2 Series F23 LCI 10/2016 - 08/2018
• 3 Series F30 F31 LCI 10/2014 - 09/2018
• 3 Series F34 GT LCI 09/2015 - 07/2017
• 3 Series F34 GT LCI 09/2015 - 07/2018
• 4 Series F32 04/2015 - 02/2017
• 4 Series F32 LCI 05/2016 - 08/2018
• 4 Series F33 03/2015 - 02/2017
• 4 Series F33 LCI 05/2016 - 08/2018
• 4 Series F36 Gran Coupé 03/2015 - 02/2017
• 4 Series F36 Gran Coupé LCI 05/2016 - 07/2018
• 5 Series G30 10/2015 - 08/2018
• 5 Series G31 03/2016 - 07/2018
• 5 Series G38 02/2016 - 08/2018
• 6 Series G32 GT 09/2016 - 07/2018
• 7 Series G11 10/2014 - 07/2018
• 7 Series G12 10/2014 - 08/2018
• X3 G01 10/2016 - 09/2018
• X4 G02 03/2017 - 08/2018

What you get

• High-flow aluminium charge pipework
• Fluorosilicone-lined performance hose
• CNC billet couplers
• Water methanol port with blanking plug
• Clamps and fitting hardware

Fitting and support

This is a direct replacement for the factory plastic ducting with no cutting required. Want it installed by professionals? Book fitting with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a quote.

Search-friendly terms

BMW B58 charge pipe upgrade, M140i M240i 340i 440i 540i 740i charge pipe kit, B58 intercooler piping, turbo outlet pipe, hot side charge pipe, cold side charge pipe, metal charge pipe replacement, performance charge air pipe, high-flow boost piping, BMW F30 F31 F32 F33 F36 F20 F21 F22 F23, BMW G30 G31 G32 G11 G12 G01 G02, remap ready, Stage 1 Stage 2 tuning support, meth injection ready, WMI bung.