Blow Off Valves & Diverter Valves for MINI

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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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Alta Performance - Corporate Logo
T#:23615472
Part#: AMPTAC100
In Stock
$ 22.99 USD
Free Shipping on orders $49 and up

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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CTS - Corporate Logo
T#:23449736
Part#: CTS-BV-0016
Ships in 7 Business Days
Sale - Save 20% $ 249.99

This product was last offered at the strikethrough price on
09-29-2026

$ 199.99 USD
Free Shipping
Sale - Save 20%
$ 249.99

This product was last offered at the strikethrough price on
09-29-2026

$ 199.99 USD
Free Shipping

Upgrade your Mini's 1.6L N14 engine with the CTS Turbo Atmospheric BOV Kit, an exceptional offering by CTS Turbo. Crafted with durable T6061 billet aluminum construction, this kit ensures reliability and longevity.

The Atmospheric BOV Kit seamlessly integrates with factory electronics, eliminating check engine lights and replacing the prone-to-failure factory plastic unit. Its piston design guarantees longevity, easy installation, serviceability, impressive sound, and great value. With a compact build slightly shorter than the stock unit, it fits snugly into the tight N14 engine bay.

Installation is hassle-free, taking only 30-60 minutes, depending on the installer's expertise.

Product Features:

  • T6061 billet aluminum construction for durability
  • Black anodized stealth finish for sleek appearance
  • Fully compatible with OE electronics, ensuring no check engine lights
  • Serviceable piston design for ease of maintenance
  • Substantial reliability improvement over the factory unit
  • Compact design fits into tight spaces effortlessly
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