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Audi A4 Blow Off Valves

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Atmospheric Diverter Valve Spacer - Gold

ES#5457768 - 021828ECS01-05 - Atmospheric Diverter Valve Spacer - Gold - Limited Edition - Individually Numbered - ECS - Audi Volkswagen

Limited Edition - Individually Numbered 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
5457768
Mfg#:
021828ECS01-05
In Stock
Limited Qty Sale
$84.99

This product was last offered at the strikethrough price on
07-02-2026

$66.99 USD
Free Shipping
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

Brand:
Forge - Corporate Logo
ES#:
3241238
Mfg#:
FMDVSK-WO34
Ships in 5 Business Days
ON SALE! SAVE 10%
$17.00

This product was last offered at the strikethrough price on
08-29-2026

$15.30 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 For vehicles from the 2021 model year only.

Brand:
Racingline - Corporate Logo
ES#:
5456834
Mfg#:
VWR144002
Ships in 5 Business Days
ON SALE! SAVE 10%
$440.99

This product was last offered at the strikethrough price on
08-29-2026

$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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