Blow Off Valves & Diverter Valves

Adding a blow off valve or upgrading your diverter valves can change the sound of your vehicle and be an asset in big power setups.

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Blow Off Valve Spring Upgrade - N14/N18 1.6L Engine

T#:23615472

Part#: AMPTAC100

In Stock

Sale - Save 10% $ 22.99

This product was last offered at the strikethrough price on
07-17-2026

$ 20.66 USD

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Sale - Save 10%

$ 22.99

This product was last offered at the strikethrough price on
07-17-2026

$ 20.66 USD

Add to Wish List

Elevate your Mini Turbo Models, including Cooper S and JCW, with the ALTA BOV Spring Upgrade. This replacement spring offers a cost-effective, high-performance solution for your stock Blow Off Valve (BOV). By holding more boost between shifts, it significantly reduces turbo lag, enhancing overall performance. The carefully designed stiffer spring ensures normal BOV operation while maintaining increased pressure in the boost tubes, preventing power gaps.

Simple and cost-effective upgrade for improved turbo response
Reduces turbo lag between shifts, boosting overall performance
Designed with a custom-made heat-treated 17-7 Stainless Steel Spring
Rated for over 7,000,000 cycles for long-lasting durability
Holds and vents up to 40psi efficiently

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Vargas Cold Side Charge Pipe - N54 - Tial/Turbosmart Raceport BOV Fla...

T#:641135

Part#: VTT-CHARGEPIPE-1

Ships in 8 Business Days

$ 103.99 USD

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$ 103.99 USD

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When upgrading and N54 we suggesting running a true BOV like a Turbosmart Raceport. This cold side charge pipe allows you to do that while getting rid of the plastic charge pipe that is prone to cracking and plastic diverter valves. Charge pipe is made from high-quality aluminum, tig welded, has two 1/8' NPT meth bungs, and a flange to fit Turbosmart Raceport or Tial BOV. Kit includes: Charge pipe 45-degree silicone adapter hose 2 1/8' NPT plugs Two T-bolt clamps

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N55 TurboSmart KOMPACT EM DV - Dual Port

T#:7734722

Part#: N55TURBOSMARTDV

In Stock

$ 338.99 USD

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$ 338.99 USD

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Upgrade your BMW N55's turbocharger performance with the award-winning Kompact EM series Diverter Valves from VTT. These plug-and-play valves are the world’s first, offering seamless installation without adapters or extra assembly. By retaining OE control, they ensure optimal operation while minimizing leakage and enhancing turbocharger response. Ideal for owners of hybrid or larger flowing turbos, these valves boast superior thermal performance, providing a must-have solution for maximizing boost without stressing the turbocharger.

Seamless plug-and-play installation
Minimizes leakage for enhanced turbocharger performance
Retains OE control for optimal operation
Superior thermal performance to maximize boost without stressing the turbocharger

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