My friend blew his tranny and is selling all his parts, and he wants to sell me his dump tube...I was wondering, if I have the stock exhaust manifold on the engine now, if an O2 dump is going to make a big difference? If it will then I will buy it...but I don't know if it's one of those things where it won't make a difference unless you have other things...like an aftermarket exhaust manifold...
let me know.