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Audi B9 A4 FWD 2.0T Blow Off Valves

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ES#3551291 - 025254ECS01-03 -  VW/Audi Atmospheric Diverter Valve Spacer - Red - Let your turbo blow off some air for an exhilarating driving experience! - ECS - Audi Volkswagen

Let your turbo blow off some air for an exhilarating driving experience! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Fits models with OEM DV part numbers 06H145710J, 06H145710C, 06H145710E. Please verify before ordering.

Brand:
ECS - Corporate Logo
ES#:
3551291
Mfg#:
025254ECS01-03
In Stock
ON SALE! SAVE 25%
$86.99

This product was last offered at the strikethrough price on
06-13-2026

$65.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4845532 - T9481 - GFB VTA Blow Off Valve - Sharper throttle response, faster boost recovery - Go Fast Bits - Audi Volkswagen

Sharper throttle response, faster boost recovery affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Go Fast Bits - Corporate Logo
ES#:
4845532
Mfg#:
T9481
In Stock
$269.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3551289 - 025254ECS01-01 - VW/Audi Atmospheric Diverter Valve Spacer - Black - Let your turbo blow off some air for an exhilarating driving experience! - ECS - Audi Volkswagen

Let your turbo blow off some air for an exhilarating driving experience! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Fits models with OEM DV part numbers 06H145710J, 06H145710C, 06H145710E. Please verify before ordering.

Brand:
ECS - Corporate Logo
ES#:
3551289
Mfg#:
025254ECS01-01
In Stock
ON SALE! SAVE 25%
$86.99

This product was last offered at the strikethrough price on
06-13-2026

$65.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3617985 - T9451 - VTA Performance Blow-Off Valve - Direct-fit performance solution with aggressive blow-off sound - Go Fast Bits - Audi Volkswagen

Direct-fit performance solution with aggressive blow-off sound affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles up through the 2020 year.

Brand:
Go Fast Bits - Corporate Logo
ES#:
3617985
Mfg#:
T9451
In Stock
10% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$229.99

This product was last offered at the strikethrough price on
06-30-2026

$206.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3191205 - FMDVMK7A-R - Blow-Off Valve Kit - *Limited Edition* Red* - LIMITED EDITION version of Forge's very popular BOV - Forge - Audi Volkswagen Porsche

LIMITED EDITION version of Forge's very popular BOV affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Limited Editions ONLY at ECS Tuning : Limited Stock so Act Fast

Brand:
Forge - Corporate Logo
ES#:
3191205
Mfg#:
FMDVMK7A-R
Ships on Jul 28, 2026
Auto Notify
ON SALE! SAVE 10%
$299.99

This product was last offered at the strikethrough price on
06-30-2026

$269.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3551290 - 025254ECS01-02 -  VW/Audi Atmospheric Diverter Valve Spacer - Clear - Let your turbo blow off some air for an exhilarating driving experience! - ECS - Audi Volkswagen

Let your turbo blow off some air for an exhilarating driving experience! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Fits models with OEM DV part numbers 06H145710J, 06H145710C, 06H145710E. Please verify before ordering.

Brand:
ECS - Corporate Logo
ES#:
3551290
Mfg#:
025254ECS01-02
In Stock
ON SALE! SAVE 25%
$83.99

This product was last offered at the strikethrough price on
06-13-2026

$62.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3085837 - FMDVMK7A1 - Blow-Off Valve Kit - Black Valve - Cure your leaking diverter valve problems for good! - Forge - Audi Volkswagen Porsche

Cure your leaking diverter valve problems for good! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Forge - Corporate Logo
ES#:
3085837
Mfg#:
FMDVMK7A1
Ships in 2 Business Days
ON SALE! SAVE 10%
$349.84

This product was last offered at the strikethrough price on
06-30-2026

$314.86 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#5457770 - 025254ECS01-05 - Atmospheric Diverter Valve Spacer - Gold - Limited Edition - Individually Numbered - ECS - Audi Volkswagen

Limited Edition - Individually Numbered affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Fits models with OEM DV part numbers 06H145710J, 06H145710C, 06H145710E. Please verify before ordering.

Brand:
ECS - Corporate Logo
ES#:
5457770
Mfg#:
025254ECS01-05
In Stock
$84.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#5457769 - 025254ECS01-04 - Atmospheric Diverter Valve Spacer - Blue - Limited Edition - Individually Numbered - ECS - Audi Volkswagen

Limited Edition - Individually Numbered affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Fits models with OEM DV part numbers 06H145710J, 06H145710C, 06H145710E. Please verify before ordering.

Brand:
ECS - Corporate Logo
ES#:
5457769
Mfg#:
025254ECS01-04
In Stock
$84.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#5375303 - FMEDV106A - Forge Electronic Atmospheric Dump Valve (E-DV) - Audi B9 A4 2.0T / S4 3.0T / VW MK8 2.0T - Next generation electronically actuated diverter valve engineered for modern turbo engines with a true plug-and-play design! - Forge - Audi Volkswagen

Next generation electronically actuated diverter valve engineered for modern turbo engines with a true plug-and-play design! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles from the 2021 model year only.

Brand:
Forge - Corporate Logo
ES#:
5375303
Mfg#:
FMEDV106A
Ships on Jul 21, 2026
Auto Notify
ON SALE! SAVE 10%
$379.99

This product was last offered at the strikethrough price on
06-30-2026

$341.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2738365 - FMDVMK7A - Blow-Off Valve Kit - Polished Valve - Cure your leaking diverter valve problems for good! - Forge - Audi Volkswagen Porsche

Cure your leaking diverter valve problems for good! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Forge - Corporate Logo
ES#:
2738365
Mfg#:
FMDVMK7A
Ships in 3 Business Days
ON SALE! SAVE 10%
$349.84

This product was last offered at the strikethrough price on
06-30-2026

$314.86 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4007248 - TS-0204-1132 - Turbosmart Gen-V Race Port BOV - Black  - The Race Port is famous for being an amazingly small and light BOV for turbocharged competition level engines - TurboSmart - Audi Volkswagen

The Race Port is famous for being an amazingly small and light BOV for turbocharged competition level engines affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
*General use blow off valve for custom big turbo applications - Not a direct fit valve*

Brand:
TurboSmart - Corporate Logo
ES#:
4007248
Mfg#:
TS-0204-1132
In Stock at Vendor
$335.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3998874 - MK7-BOV-SPR - BMS Blow Off Valve Spacer - Converts factory diverter valve into a blow-off valve - Burger Motorsports - Audi Volkswagen

Converts factory diverter valve into a blow-off valve affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Burger Motorsports - Corporate Logo
ES#:
3998874
Mfg#:
MK7-BOV-SPR
Ships in 2 Business Days
$99.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3660019 - CTS-BV-0009-B9 - Blow Off Valve Kit - Fully serviceable, piston design valve is a direct bolt-on, without worry of a check engine light - CTS - Audi

Fully serviceable, piston design valve is a direct bolt-on, without worry of a check engine light affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CTS - Corporate Logo
ES#:
3660019
Mfg#:
CTS-BV-0009-B9
Ships in 8 Business Days
ON SALE! SAVE 20%
$249.99

This product was last offered at the strikethrough price on
06-25-2026

$199.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4007245 - TS-0204-1131 - Turbosmart Gen-V Race Port BOV - Blue - The Race Port is famous for being an amazingly small and light BOV for turbocharged competition level engines - TurboSmart - Audi Volkswagen

The Race Port is famous for being an amazingly small and light BOV for turbocharged competition level engines affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
*General use blow off valve for custom big turbo applications - Not a direct fit valve*

Brand:
TurboSmart - Corporate Logo
ES#:
4007245
Mfg#:
TS-0204-1131
In Stock at Vendor
$335.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Replaces the failure-prone factory diaphragm for rock-solid boost control affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles from the 2021 model year only.

Brand:
Racingline - Corporate Logo
ES#:
5456834
Mfg#:
VWR144002
Ships in 4 Business Days
ON SALE! SAVE 10%
$440.99

This product was last offered at the strikethrough price on
06-30-2026

$396.66 USD
This product is lifetime replacement eligible Lifetime Replacement

More About Blow Off Valves

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!

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Manufacturer names and/or part numbers are used only for identification purposes.

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