GFB DV+ Turbo Diverter/BYPASS Valve Upgrade for BMW 4 Series 435i F32 Coupe 2013-2018 (3.0L N55) - Quiet OEM+ Recirculation, Blow Off Valve Alternative, Boost Leak Fix, Plug & Play

Quiet, OEM+ turbo recirculation upgrade for BMW 435i F32 2013 to 2018

Looking for stronger, smoother boost control without the whooshy soundtrack A premium closed-circuit turbo bypass valve upgrade is the answer. This direct-replacement unit keeps everything factory-quiet while dramatically improving boost retention and throttle response on the turbocharged BMW 4 Series 435i Coupé.

Why upgrade your turbo bypass valve

• Crisper pedal feel - noticeably more immediate response when you get back on the throttle
• Faster boost recovery between gear changes - helps the turbo stay on song
• Stops charge pressure bleeding away - addresses common leak issues from the stock diaphragm-style unit
• Engineered for longevity - robust metal internals designed to cope with heat and higher boost
• Retains factory electronics - uses the original ECU control strategy for seamless operation
• Recirculates air back into the intake - performance benefits with no extra noise and no attention
• No mapping required - a true bolt-on improvement for everyday driving and spirited use

Optimised for the BMW N55 turbo engine

Compatible with the BMW 4 Series F32 435i 3.0 petrol turbo Coupé from 2013 to 2018. This is a straight swap for the standard turbocharger bypass valve mounted on the compressor housing, giving you a reliable, high-performance solution that feels factory-integrated.

Proven on our own builds

We have fitted this upgrade to customer cars and our own shop vehicles with excellent results. Owners report stronger mid-range punch, cleaner gear transitions and long-term reliability compared to the stock part.

Fitting and support

Professional installation available at MJ Modifications in Warwickshire. Request a fitting quote: info@mjmodifications.co.uk.

Search-friendly details

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