I just installed my obx 4-2-1 header in my 99 nissan altima ..only thing is the downpipe flex pipe flange is hitting the engine block a little..so i get this annoying rattle everytime the car shifts gears...but they perform real well
but im trying to see if you guys have any ideas so i can get rid of it..im thinking of using some type of cushion whichll stop the noise
please leave some feedback..thank you