do i need a boost by pass?

You can make that for much cheaper!!!

I've got a bypass valve I had with my vortech kit that im not using, all you would need is some heater hose, clamps and those two fittings(I have one but its a 90*) to have that for a LOT cheaper. PM me if your interested in the bypass valve, just had it laying around.

Yes, its a good thing to have btw no matter what route you go.
 
i would recommend one. i added mine when i had 6 psi and since i did i dont have any compressor surge and when i let off the gas the car doesnt keep trying to pull itself as bad. i didnt even get the alum inlet tube. i just drilled a hole through my black plastic tube i got with my SC trim kit and jbwelded a barb in it and ran some heater hose and routed it to my boost pipe and it works real good.
 
i wouldnt run it as a "blow off" a BOV and bypass valve are pretty much the same thing. but blowing it off to atmosphere just bleeds off metered air and will cause the engine to run rich. but it does sound cool though.


It's only going to run rich at that very moment when you let out of the gas, and it's not that significant anyways. This is the case in pretty much any turbo application that has a BOV and i wouldn't consider it to be any negative issue at all. Personally i would run the BOV with either setup, turbo or supercharger, but that's just me.