Blow Off Valve for BMW N20: Performance Upgrade & Maintenance Guide
The blow off valve for BMW N20 plays a critical role in protecting the engine by safely releasing crankcase pressure when the turbocharger closes. This simple yet essential component prevents oil contamination and reduces stress on vital engine parts, enhancing longevity and reliability. Ideal for performance enthusiasts, a quality blow off valve improves drivability, reduces turbocharger washdown risk, and boosts overall engine responsiveness.
When upgraded from factory systems, premium blow off valves deliver better sealing, faster relief, and enhanced durability under high boost conditions. Installation is typically straightforward for most N20 engines, though proper routing and secure mounting are essential for optimal performance. Regular maintenance—including checking for carbon buildup and ensuring valve operation—is key to sustaining peak efficiency.
For BMW N20 owners seeking to unlock their engine’s full potential, investing in a reliable blow off valve is a smart, future-proof upgrade. It ensures smoother operation, extends component life, and gives you greater confidence on the road. Whether you’re tracking corners or cruising, this small component makes a big difference.
Conclusion: Upgrading to a high-performance blow off valve for your BMW N20 isn’t just a performance enhancement—it’s a strategic investment in engine health and driving satisfaction. For proven quality and seamless integration, choose a valve built to withstand the demands of high-performance driving. Elevate your N20 today with the right blow off solution.
The CTS Turbo N20 Atmospheric BOV KIT replaces the factory plastic unit which has been prone to failure from torn diaphragms, cracked plastic, and electrical malfunctions. Our piston design ensures long life, easy installation, complete serviceability, great sound and great value. CTS Turbo BMW N20 Blow Off Valve CTS-BV-0015 Read Product Details $249.99 Pay over time with Affirm.
See if you qualify at checkout. The blow-off valve releases boost pressure when the throttle butterfly valve is closed either between shifts or whenever you're lifting off the throttle. Replace a failing BOV to prevent boost leaks or upgrade to a performance blow-off valve for better sound and higher boost pressure thresholds!
This Blow Off, or Dump valve, is for the BMW N20 2.0 Turbo engines that have the electronically controlled bypass valve. This engine can be found in the F10,F20 and F30 chassis badged as 125i,225i, 220i, 228i, 320i, 328i, 520i and 528i. Eliminates failure from torn diaphragms, cracked plastic, and cooked electronics.
High performance BOV with long life and great sound! CTS Turbo is at it again with their N20 Atmospheric Blow Off Valve Kit. This BOV can be installed in one to two hours (depending on skill) using simple hand tools. Slightly shorter than.
Fits For BMW 125i N20, BMW 220i N20, BMW 225i N20, BMW 228i N20, BMW 320i N20,BMW 328i N20, BMW. 520i N20, BMW 528i N20. 1 x Aluminum Dump Valve Adapter Kit.
Our valve is piston based with no diaphragm to fail, and of all aluminium construction. CTS Turbo is proud to release our Atmospheric BOV KIT for N20 BMW engines. The CTS Turbo N20 Atmospheric BOV KIT is made of billet construction and completely serviceable.
Their kit is designed to work with all of the factory electronics, will not cause any check engine lights. The CTS Turbo N20 Atmospheric BOV KIT replaces the factory plastic unit which has been prone to failure from torn.