CTS Turbo BMW N20 BOV Blow Off Valve Kit - Atmospheric Billet Aluminium Diverter/Dump Valve Upgrade, OE Electronics Compatible

BMW N20 Vent-to-Atmosphere Valve Upgrade by CTS

Give your 2.0 turbocharged BMW the crisp whoosh and rock-solid boost control it deserves. This CTS upgrade replaces the weak factory plastic pressure relief valve with a compact, CNC-machined alloy unit that is rebuildable, reliable and designed to work seamlessly with the factory control system. Expect sharper throttle response, consistent boost retention and that unmistakable turbo sound.

Key benefits

• CNC-machined billet aluminium body for strength and heat resistance
• Stealthy black anodised finish that looks at home in any engine bay
• Rebuildable piston mechanism for long service life and easy maintenance
• Integrates with the factory electronics without dash warnings or fault codes
• Short-body profile for tight spaces in the N20 engine bay
• Replaces the OE plastic valve that is known for split diaphragms, cracked housings and boost leaks
• Distinctive vent-to-atmosphere sound under load with clean, crisp release

What you will feel and hear

Faster boost recovery between shifts, improved sealing under higher load and a satisfying turbo whoosh when lifting off. This is a straightforward reliability and sound upgrade for N20-powered cars, whether stock or lightly tuned.

Installation notes

No need to remove the turbocharger. Typical fitting time is around 1 to 2 hours depending on experience and tools. The original recirculation valve wiring loom requires modification to connect to the included solenoid, as part of the install.

Professional fitting

Prefer us to install it. MJ Modifications in Warwickshire can take care of everything. Request a fitting quote at info@mjmodifications.co.uk.

Proven by us and our customers

We have run this CTS hardware on our own N20 builds and it has been flawless. Owners love the robust construction, dependable boost control and addictive sound. It is a simple swap that removes a known weak point and adds enjoyment every time you drive.

Search terms people use

BMW N20 vent to atmosphere valve, BMW 2.0 turbo valve upgrade, BMW N20 pop off valve, BMW turbo sound upgrade, BMW boost dump valve, BMW charge pressure relief valve, CTS valve upgrade for N20, BMW N20 DV replacement, BMW N20 piston valve, BMW turbo whoosh kit, BMW N20 pressure release valve, BMW N20 turbo hiss sound, BMW N20 charge air valve, BMW DV leak fix, BMW N20 boost control upgrade, BMW 2.0T valve kit, BMW N20 turbo blow off sound, CTS atmospheric valve for BMW N20.