VRSF Aluminium Charge Pipe Upgrade Kit for BMW B58 M140i, M240i, 340i, 440i, 540i, 640i, 740i, X3 M40i, X4 M40i (F20 F21 F22 F23 F30 F31 F34 F32 F33 F36 G30 G

BMW B58 Boost Pipe Kit - stronger alloy hard pipe for 140i 240i 340i 440i 540i 640i 740i X3 M40i X4 M40i

Make your B58-powered BMW feel tighter, faster and more dependable with this VRSF aluminium boost pipe upgrade. The factory plastic pressure pipe is a known weak point on tuned and even stock cars, often splitting, cracking or blowing off under load. This high flow alloy hard pipe replaces the fragile OE ducting from the intercooler to the throttle body, delivering sharper response, consistent boost and long-term reliability for spirited road use and track days.

Engineered from 6061-T6 aluminium with precision machined billet ends, TIG-welded construction and a durable textured black powdercoat, the VRSF pipework provides a direct, leak-free fit on the B58. A built-in 1/8 NPT port gives clean provision for water-meth injection, a boost reference or smoke testing. Supplied with premium multi-ply silicone joiners and stainless T-bolt band clamps for a secure seal at higher boost pressure.

We have fitted this kit on a large number of B58 cars and customers love the improved throttle feel and peace of mind. It is one of the most effective reliability mods you can do on the platform.

Why switch to an alloy boost pipe

• Eliminates common failures of the stock plastic pipe - no more splits, blown couplers or boost leaks
• Crisper throttle response and reduced lag thanks to a smoother, rigid intake tract
• Perfect foundation for remaps, hybrid turbos and larger intercoolers
• OEM-plus look with a tough powdercoated finish
• Lifetime warranty from VRSF for confidence and value

Technical highlights

• 6061-T6 aluminium tubing - mandrel bent for consistent diameter
• Billet machined throttle body and intercooler connections for precise sealing
• TIG-welded construction for strength under elevated manifold pressure
• Textured black powdercoat finish
• Pre-threaded 1/8 NPT port - ideal for WMI, boost gauge or diagnostic testing
• Includes 4-ply silicone joiners and stainless T-bolt clamps

Symptoms this upgrade cures

• Popping off under heavy load or during gear changes
• Hissing, whooshing or inconsistent boost
• Loss of power, limp mode and fault codes from air leaks

Cross reference: replaces OE plastic pressure pipe associated with BMW part number 13718601684.

Vehicle compatibility - B58 petrol models

Direct fit on the following F and G series:

• F20 F21 140i - including xDrive
• F22 F23 M240i - including xDrive
• F30 F31 F34 340i - including xDrive and Touring/Gran Turismo
• F32 F33 F36 440i - Coupe, Convertible and Gran Coupe including xDrive
• G30 G31 540i - Saloon and Touring including xDrive
• G32 640i - Gran Turismo including xDrive
• G11 G12 740i 740Li - including xDrive
• G01 X3 M40i
• G02 X4 M40i

Unsure if it suits your registration or chassis code - contact us and we will confirm fitment.

What’s in the box

• VRSF aluminium boost pipe - textured black
• High quality multi-ply silicone couplers
• Stainless steel T-bolt band clamps
• 1 x plugged 1/8 NPT port

Optional but recommended: replacement throttle body C-clip and O-ring if your originals are worn or misplaced.

Professional installation

For a clean, hassle-free fit and pressure testing, book installation with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Availability

These kits are popular. We usually hold stock but during peak periods there may be a short dispatch delay. For current lead times or any questions, email info@mjmodifications.co.uk.

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