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Wondering where your boost went? Power delivery not as smooth as it used to be? Most likely your engine's diverter valve is to blame.
What is a diverter valve? A diverter valve (DV) is a pathway for boost when it is not being used by your engine. Whenever the throttle body is closed, like during shifts or deceleration, the boost needs an escape route. If the boost cannot escape during these times, it can back up and cause shocks to the turbo. These shocks will stall the turbo, slowing boost production upon re-acceleration (turbo lag). Even worse, these shocks can cause damage to the turbo. The diverter valve's job is to open when the throttle body is closing or closed, and reroute the boost to the low pressure intake side of the turbo, where it can do no harm.
During development of 750+ hp turbo kits for Porsche models, we came across a late model Porsche factory DV that indeed can go the distance. We designed a few companion parts, and this DV in essence is now a direct replacement for the problematic VW, Audi, and older model Porsche unit. No permanent modifications are required for install, and it is designed as serviceable and cheaper alternative to the Bailey Motorsport DV30 unit that we also carry.
The AWE Tuning High Performance DV1 Diverter Valve comes with a one-year warranty.
Simple and elegant in its design, yet made for the most demanding of applications, this DV is a serious performer and has been extensively track, street, and dyno tested on multiple cars in multiple climates.
Install of the AWE Tuning DV1 Diverter Valve is a simple half hour install procedure and it is the most economical solution on the market for the chronic DV issue.
99-05 Audi TT, VW Golf/Jetta/NB 1.8T: Download Installation Instructions
00-05 Audi 2.7T Engines: Download Installation Instructions
01-05 Porsche 996TT: Download Installation Instructions
|Volkswagen||Beetle||Fits Any Submodel||1.8L Turbo||FWD||Fits Any Transmission||1999-2005|
|Audi||A4||Sedan||1.8L Turbo||Quattro||Fits Any Transmission||2001-2001|
|Audi||A4||Sedan||1.8L Turbo||Quattro||Fits Any Transmission||2005-2005|
|Audi||A4||Sedan||1.8L Turbo||FWD||Fits Any Transmission||2001-2001|
|Audi||A4||Sedan||1.8L Turbo||FWD||Fits Any Transmission||2005-2005|
|Audi||TT||Coupe||1.8L Turbo||FWD||Fits Any Transmission||2000-2006|