Description
Optimize performance and boost reliability with the Forge Motorsport Blow Off Valve Kit for the BMW 135i and 235i equipped with the N55 engine and Pneumatic Wastegate (PWG) turbo system (2014–2016). This high-performance upgrade replaces the failure-prone factory electronic diverter valve with a precision-engineered piston-style blow off valve, delivering consistent boost control and sharp throttle response.
Ideal for both tuned and stock vehicles, especially in warmer climates, the Forge BOV helps prevent unnoticed power loss caused by OEM diaphragm failure—often without triggering a check engine light. The Forge valve’s fully billet aluminum construction and diaphragm-free piston design ensure long-term durability and improved turbo efficiency.
Unlike other aftermarket options, this system retains OEM ECU control over valve actuation, ensuring seamless integration and no compromise in driveability or engine management.
Key Features:
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Direct replacement for OEM electronic diverter valve (PWG engines)
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Ideal for tuned or unmodified vehicles in hot climates
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Prevents common diaphragm failure and boost leaks
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Piston-based internal design – no diaphragm to rupture
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Fully CNC-machined aluminum construction
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Maintains OEM ECU control over boost regulation
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Enhanced throttle response and audible turbo venting
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Long-term reliability even under increased boost
What's Included:
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1x Forge FMDVF20A Valve
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3000mm of 4mm Vacuum Tube
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100mm & 50mm of 6mm Vacuum Tube
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Solenoid with Bracket & Mounting Screws
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Uprated Blue Spring
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8-4-8 T-Piece
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10x Cable Ties
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Forge USB Instructions
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Forge Keyring and Sticker
Vehicle Fitment:
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2014–2016 BMW M235i (F22) – 3.0L N55 PWG
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2016 BMW M235i M Sport – 3.0L N55 PWG
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2015–2016 BMW M235i xDrive – 3.0L N55 PWG
Note: Only compatible with PWG (Pneumatic Wastegate) N55 engines. Not for use on EWG (Electronic Wastegate) variants.
