hey whats up andrew 1 thing dont get ceramic headers get a stainless steel header also the header needs to be a 3 inch outlet then get a 3 inch high flow cat then right after the cat go to a 2.25-2.5 inch pipe and then just run it to a 2.25-2.5 inch exhaust, do it right the 1st time so u wont have to change out the cat if u decide to go 3 inch later.