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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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ECS Atmospheric Diverter Valve Spacer - N55
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:5512196
Part#: 019477LA01-01
In Stock
Sale - Save 25% $ 90.99

This product was last offered at the strikethrough price on
06-14-2026

$ 68.24 USD
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Sale - Save 25%
$ 90.99

This product was last offered at the strikethrough price on
06-14-2026

$ 68.24 USD
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Let your turbo blow off some air for an exhilarating driving experience!
VAC Motorsports - Corporate Logo
T#:641216
Part#: VAC-OTDV-S65
Back Ordered
$ 62.99 USD
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$ 62.99 USD
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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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ECS Atmospheric Diverter Valve Spacer - Black Anodized
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:6304593
Part#: 019463LA01-01
In Stock
Sale - Save 25% $ 90.99

This product was last offered at the strikethrough price on
06-14-2026

$ 68.24 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 90.99

This product was last offered at the strikethrough price on
06-14-2026

$ 68.24 USD
Free Shipping on orders $49 and up

Bring out the sound of your turbo with the ECS Atmospheric Diverter Valve Spacer! The ECS DV Spacer gives your N20 the sound of a blow off valve (BOV) with every gear change and every boosted throttle close! The strategically engineered vent slots allow you to boost on without a CEL (Check Engine Light).

FEATURES:

Anodized Black 6061-T6 aluminum

Features 3 radial slots to let out the “woosh” with optimal flow for all OEM DV types

Engineered to operate CEL-FREE!

Alignment holes for ease of installation

Includes pre-installed, captured Viton O-rings, resistant to chemical degradation

Includes Zinc-plated alloy steel socket head cap screws

Tested for performance and durability

INSTALLATION:

Remove Diverter Valve
Place the spacer onto the DV flange r
Re-install your original DV solenoid atop the spacer with the included longer hardware.
The wastegate actuator must be swung out of the way for install. Loosen both screws retaining the wastegate actuator, then remove the one closest to the actuator, allowing the actuator to swing out of the way. This will allow for ease of installation.

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Vargas Turbo Technologies - Corporate Logo
T#:641135
Part#: VTT-CHARGEPIPE-1
Ships in 5 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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MINI Atmospheric Diverter Valve Spacer - Red Anodized
10X Entries Into Our F80 M3 Sweepstakes
Requires older design 11657593273 electric valve with gasket.
ECS - Corporate Logo
T#:6924299
Part#: 019449LA01-03
In Stock
Sale - Save 25% $ 89.99

This product was last offered at the strikethrough price on
06-14-2026

$ 67.49 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 89.99

This product was last offered at the strikethrough price on
06-14-2026

$ 67.49 USD
Free Shipping on orders $49 and up
Makes the wooshy wooshy noise from the turbo

MINI Atmospheric Diverter Valve Spacer - Black Anodized
10X Entries Into Our F80 M3 Sweepstakes
Requires older design 11657593273 electric valve with gasket.
ECS - Corporate Logo
T#:5512198
Part#: 019449LA01-01
In Stock
Sale - Save 25% $ 89.99

This product was last offered at the strikethrough price on
06-14-2026

$ 67.49 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 89.99

This product was last offered at the strikethrough price on
06-14-2026

$ 67.49 USD
Free Shipping on orders $49 and up
Makes the wooshy wooshy noise from the turbo
N55 TurboSmart KOMPACT EM DV - Dual Port
2X Entries Into Our F80 M3 Sweepstakes
Vargas Turbo Technologies - Corporate Logo
T#:7734722
Part#: N55TURBOSMARTDV
Ships in 10 Business Days
$ 338.99 USD
Free Shipping
$ 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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Kayser - Corporate Logo
T#:385239
Part#: 11657556555
Ships in 6 Business Days
$ 80.99 USD
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$ 80.99 USD
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Used in the forward location

VAC Motorsports - Corporate Logo
T#:641215
Part#: VAC-OTDV-S54
Ships in 10 Business Days
$ 64.99 USD
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$ 64.99 USD
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This kit gives offers you a quick and simple solution to delete your oil cooler’s thermostat, and install only takes about 5-10 minutes once you’ve removed the housing.
FTP Motorsport - Corporate Logo
T#:582198
Part#: SG71393
Special Order: No Guaranteed ETA
$ 200.00 USD
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$ 200.00 USD
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This is a set of upgraded blow off valves for the N54 engine. The recirculating design uses OE DV design to ensure proper emissions and no engine lights. Features: Quicker responding boost with higher flowing valve Increase in horsepower and torque Eliminates boost spikes and leaks Overall accelerations improvements Capable of handling a wider range of boost pressure Easy bolt-on installation Made from CNC machined T6-6061 billet aluminum alloy Fully tunable for boost capacity and response
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Kayser - Corporate Logo
T#:385241
Part#: 11657556556
Special Order: No Guaranteed ETA
$ 66.99 USD
Free Shipping on orders $49 and up
Used in the rear location


Viton® Fluoroelastomer O-Ring 2.5 Mm Wide, 40 Mm ID
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:8184970
Part#: 1295N464
In Stock
Sale - Save 10% $ 4.99

This product was last offered at the strikethrough price on
05-03-2026

$ 4.49 USD
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Sale - Save 10%
$ 4.99

This product was last offered at the strikethrough price on
05-03-2026

$ 4.49 USD
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Vargas Black TiAL BOV Spring - BMW N54
2X Entries Into Our F80 M3 Sweepstakes
Vargas Turbo Technologies - Corporate Logo
T#:51813316
Part#: VTT-TIAL-BLACK
Ships in 10 Business Days
New Item
$ 52.99 USD
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$ 52.99 USD
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Maintain the peak performance of your forced induction system with the VTT Black TiAL BOV Spring.
Enthusiast Bundles - Corporate Logo
T#:37419778
Part#: 054380LA01EBKT
In Stock
Sale - Save 20% $ 1,000.98

This product was last offered at the strikethrough price on
05-05-2026

$ 799.00 USD
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Sale - Save 20%
$ 1,000.98

This product was last offered at the strikethrough price on
05-05-2026

$ 799.00 USD
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Refresh and upgrade your front intercooler to ensure you are supplying your engine with the maximum amount of airflow. With the added charge pipe and BOV kit you can drive confidently knowing the plastic charge pipe is replaced with a much stronger metal alternative with added blow off valve for a full performance and sound upgrade!

OEM+ Upgraded Front Mount Intercooler:

Upgrade your N54/N55 performance effortlessly with this "OEM+" Intercooler from ECS Tuning! This premium intercooler is engineered to deliver superior cooling efficiency and increased horsepower without the hassle of extensive bumper/core support modifications.

Key Features:

Enhanced Core Depth: Featuring a robust aluminum bar and plate core, this intercooler ensures optimal heat dissipation for peak performance.
Durable Construction: TIG-welded cast aluminum end tanks provide unmatched durability, replacing the factory's plastic components.
Perfect Fitment: Designed to fit just like the OEM unit, it requires no additional brackets or modifications to the bumper or core support.
Compatibility: Works seamlessly with OE charge pipes and pipe connectors for easy installation.
Benefits:

Improved Cooling Efficiency: Significantly lowers intercooler outlet temperatures, ensuring your engine runs cooler and more efficiently.
Increased Durability: Aluminum end tanks offer enhanced durability and longevity compared to factory plastic construction.
Hassle-Free Installation: No need for trimming the front bumper or modifying the radiator support, making installation straightforward.
Whether you're after increased performance or an OEM purist, the ECS Tuning OEM+ Intercooler is the perfect upgrade for your BMW. Enjoy the benefits of increased horsepower and lower temperatures with an easy, hassle-free installation.

N54 Chargepipe and BOV Kit:

All of the tuning in the world is only as good as the weakest link. More boost in your 135/335 is great! But you will soon learn that some of the factory hardware is not up to the task of handling that extra pressure. One of the first things to fail and cause a boost leak are the factory boost diverter valves. This allows boost to "leak" out of the intake stream and a loss of power from the engine. This ECS Tuning chargepipe upgrade includes a blow-off valve in place of the factory diverter valves. The BOV is higher quality than the diverter valves and will exit intake air to the outside instead of putting it back through the turbo system (which will reduce strain on the turbos). This aluminum chargepipe is also much more robust than the stock plastic factory pipe and the connection to the throttle body is stronger, eliminating another failure point of the stock pipe.

Built-in 1/8" NPT ports allow you to run an additional methanol injection kit (bungs included if you don't want use the ports).

This is a complete kit that includes everything you need to replace the factory chargepipe and diverter valves -

powedercoat chargepipe
ECS Tuning blow-off valve
multiple BOV springs to suit your vacuum/boost needs
vacuum plugs for the stock diverter valve hoses
silicone hose connection to intercooler piping
all hardware and hose clamps with instructions

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Electric Valve / Diverter Valve - Newest Design
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:55030827
Part#: 11658636606
Ships on Nov 16, 2026
New Item
$ 65.99 USD
Free Shipping on orders $49 and up