I have a 2000 grand am gt and i was wondering if i bought a cat back monza performance exhaust and a k&n cold air intake, how much horsepower will i gain, and also i get around 20-22 mpg would that stay somewhere around the same?
Alright so i just got a fix it ticket for my tinted windows and i really dont want to take them off so is there any ways i can get around not taking them off ?
alrighty i was just wondering this cuz my friend thinks i cant find this out, and so far he is right but this is pretty tricky cuz i think GSL is like a virtual sports league or something so if someone can help me with this it would be great.