I have it in my car... Helix Power Tower TB spacer (old version) It's actually saved me a few miles of gas and it suppose to improve hp y 1-2, maybe 3... but its not like your gonna feel it or anything lol...

The thing i love about it so much is that it was a "pshhh.." sound like a blow off valve... Makes it sound like a supercharger/turbocharged sound...

The negative thing about this is that it sticks your tb out an inch.. so it'll also push your intake out an inch as well... i have a v2 on my car, and it is against my inner fender wall.. i have to cushion it so that it doesnt hit it...

But I'm glad i got it, got many compliments from my friend about it...