Okay so I am looking for exhaust options for my NA. I have heard though that NA cars need a certain amount of backpressure for the upgrade to be worth it. I am not sure what the stock exhaust size is, but I know that 2.5 to 3.0inches is an upgrade from stock. I haven't seen too many exhausts for these cars that are NAs and was just wondering which size should I go for. Originally I was looking at the HKS Super Dragger which is 3 inches, but would that eliminate the backpressure that I need? Also please lemme know your results if you have an aftermarket exhaust on your NA.