I have the black proflow bypass valve now that's a 2" opening on both sides. I was looking into other bypass valves, but it looks like some goes 90 degrees like the vortech mondo.. not much room in there. I see there are some with one opening..not sure how that differs from my set up. any thoughts on a better bypass valve for the psc1 on my lt1??

 

ATI's big red race valve is nice but I found it rather noisy. The Mondo is nice simply because you can aim it down or where ever you want or even route it somewhere else if necessary.

 

I got a Tial BOV. Moves a ton of air, and is a quality unit, but a lot less than the ATI race ready unit.

But honestly, I really doubt in your situation with the small blower, and not making much boost that it will make any difference at all.

I would save your money.