Has anyone used this performace module I found on ebay? I dont know what to think when I see these things but I was hoping someone could give me some information to what it actually does and if it increases horsepower/tourque? Do you think it is actually worth it?
I know there are not to many performance upgrades for the northstar but I was wondering if anyone can share there experiances with low cost performance upgrades. I am looking for peak performace in my northstar. Alot say that stock still produces the best numbers.