my buddy said he suggested that i should get a turbosmart kompact 25mm dual port bov... i read around that a bov would make my engine run rich, thoughts?

 

Your engine is designed for a diverter valve (DV) rather than a blow-off valve (BOV). Because of the way the plumbing is set up, the diverter valve is after the mass air flow sensor (MAF), meaning that a BOV in that location would be venting metered air to atmosphere. This will, as you have read, cause a rich condition, because the ECU will think it has more air coming in than it actually does. A DV recirculates that air, eliminating that problem.

You can run a BOV if you want, but in order for it to function properly, you need to either run without a MAF or do some major changes to the plumbing in the engine bay.

Most people choose to simply upgrade to a better DV than stock (several good options exist), rather than going through the trouble of working through the crap required to make a BOV work right on our cars.

 

can i get some links to the best ones please

 

DV and/or BOV upgrades are, generally speaking, supporting mods for increased boost; do you have a larger than stock turbo or an ECU upgrade that cranks up the boost? If not, the stock one is probably fine. If you're looking for that BOV sound, a DV won't give it to you, because that sound is from the excess boost venting to atmosphere when a BOV triggers.

That said, if you do need one, the APR R1 is a good option, as is the Forge 007 (lots of places sell it, just google it). The Synchronic seems cool in concept, but I don't know of a lot of people using it.

 

I second the APR R1 diverter valve. I have had it for a few months now and I haven't had a problem with it. And with it, you will not get the very loud hiss like in Fast and Furious, but when the turbo is spooled up (and you hear the whistle), let off the throttle, and you will get a reasonably clear hissing sound. It doesn't sound ricey at all, just a lot easier to notice. It is a great diverter valve, and I am very satisfied with it!

 

ok my only question is: is it worth spending the money on if you have a stock turbo and dont plan on upgrading for a minute?

 

Unless your stock valve is failing, I wouldn't bother for now. Do it when you up the boost.