i have a high flow cat , and cat back on a 91 D16a6 , with headers and intake , and i passed my emmisions with flyin colors! i woulndt worry so much about doin those things!
i have a high flow cat , and cat back on a 91 D16a6 , with headers and intake , and i passed my emmisions with flyin colors! i woulndt worry so much about doin those things!
dnwp