show me proof that you lose any performance....

 

I didn't pay anything worth crying about for it.

I have a vacuum leak I think where it bolts to the flange.

 

probably used a crappy gasket that came with it. Lose the gasket and keep another valve on stand by since those diaphrams wont last long.

And i know, they are like $20-40 on ebay, money that could of gone elsewhere like a used stock evo or vw/audi bosch valve

 

I have a stock evo bov that I was using, I got this for $5 so I don't really care about it, I'm about to switch back to the evo one soon. I also have a 1g metal bov.

 

sounds good to me

 

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