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Audi A4 Blow Off Valves

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Splitter Valve - Black

ES#8288 - FMDVSPLTR - Splitter Valve - Black - Recirculation & blow off valve all in one for customers that want both styles - Forge - Audi Volkswagen

Recirculation & blow off valve all in one for customers that want both styles affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Forge - Corporate Logo
ES#:
8288
Mfg#:
FMDVSPLTR
Back Ordered
$310.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Forge Electronic Atmospheric Dump Valve (E-DV) - Audi B9 A4 2.0T / S4 3.0T / VW MK8 2.0T

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 in 7 Business Days
$379.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Atmospheric Blow Off Valve Spacer - Polished

ES#1832412 - FMDV14T - Atmospheric Blow Off Valve Spacer - Polished - Direct bolt on without worry of a check-engine light - Forge - Audi Volkswagen

Direct bolt on without worry of a check-engine light affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with plastic intake manifolds

Brand:
Forge - Corporate Logo
ES#:
1832412
Mfg#:
FMDV14T
Back Ordered
$130.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Valve Spring Tuning Kit

ES#2081087 - fmtvtun - Valve Spring Tuning Kit - Fine tune your Blow Off or Diverter Valve to the exact needs of your engine with this complete tuning kit. - Forge - Audi Volkswagen MINI

Fine tune your Blow Off or Diverter Valve to the exact needs of your engine with this complete tuning kit. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Forge - Corporate Logo
ES#:
2081087
Mfg#:
FMTVTUN
Back Ordered
Auto Notify
$34.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Blow-Off Valve Kit - Polished Valve

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 2 Business Days
$349.84 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Turbosmart Gen-V Race Port BOV - Black

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

Splitter Valve - Polished

ES#1832064 - FMDVSPLTRC - Splitter Valve - Polished - Recirculation & blow off valve all in one for customers that want both styles - Forge - Audi Volkswagen

Recirculation & blow off valve all in one for customers that want both styles affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Forge - Corporate Logo
ES#:
1832064
Mfg#:
FMDVSPLTRC
Back Ordered
$287.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Turbosmart BOV Kompact Plumb Back-25mm

ES#3149384 - TS-0203-1222 - Turbosmart BOV Kompact Plumb Back-25mm - Bolt-in replacement for your factory plastic valve - TurboSmart - Audi Volkswagen

Bolt-in replacement for your factory plastic valve affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
TurboSmart - Corporate Logo
ES#:
3149384
Mfg#:
TS-0203-1222
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.

$186.99

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

$168.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Atmospheric Blow-off Valve Spacer

ES#2862882 - CTSDVSPCR - Atmospheric Blow-off Valve Spacer - Direct bolt on spacer without worry of a check-engine light - CTS - Audi Volkswagen

Direct bolt on spacer without worry of a check-engine light affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CTS - Corporate Logo
ES#:
2862882
Mfg#:
CTSDVSPCR
Ships in 7 Business Days
$89.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

BMS Blow Off Valve Spacer

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 1 Business Day
$99.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Blow Off Valve Kit

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 7 Business Days
$249.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Turbosmart Gen-V Race Port BOV - Blue

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

Blow Off Valve - Atmospheric

ES#1832445 - FMDVWO34C - Blow Off Valve - Atmospheric - 34mm weld on dual piston atmospheric blow off valve for custom installs - Forge - Audi Volkswagen

34mm weld on dual piston atmospheric blow off valve for custom installs affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Forge - Corporate Logo
ES#:
1832445
Mfg#:
FMDVWO34C
Back Ordered
$216.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Blow Off Valve - Atmospheric Service Kit

ES#3241238 - FMDVSK-WO34 - Blow Off Valve - Atmospheric Service Kit - Full replacement kit for es1832445 - Forge - Audi Volkswagen

Full replacement kit for es1832445 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Forge - Corporate Logo
ES#:
3241238
Mfg#:
FMDVSK-WO34
Ships in 3 Business Days
$17.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Diverter Valve - MQB Evo

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 3 Business Days
$440.99 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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