2003 Jetta Performance Upgrades
 

I have 2003 Jetta 1.8Turbo and i was wondering if installing a Blow Off Valve would it mess up the engine in anyway...

thanks for reading,
Shelby

RE: 2003 Jetta Performance Upgrades
 

No, your car didn't come with a blowoff valve?? Upgrading your blowoff valve is a good idea, research getting a divertor valve, too...also a manual boost controller is a must, if you're racing like me.

RE: 2003 Jetta Performance Upgrades
 

Could you please tell me how to install a blow off valve and boost controller?

RE: 2003 Jetta Performance Upgrades
 

The blowoff valve is installed after the turbo to release pressure from the turbo when it spools. I dunno where your turbo is sitting, or what your setup looks like, I will look into it

RE: 2003 Jetta Performance Upgrades
 

dv is the best idea i just installed one, did someone tell you that is messes up your engine?