NooB Question: Will not running a catalytic converter damage a 4-2-1 ceramic coated header? I never thought about it, but the little information chingadera sheet that DC Sports included with mine had a warning about that.

Any basis to that, or is it something they had to include for the CARB Gestapo?

Also, is it Kosher to powdercoat ceramic headers?

 

uhhhh, no there should be no way that a test pipe could hurt a header. the cat is after the header so with or without a cat the exhaust flows through it the same.

and as far as powdercoating, i guess you could do it. you will just need some pretty high temp powder and sand through the ceramic coating.

 

ur header will be fine, nothing will happen to it

 

yeah i dont know why they would say it would cause damage to the header.... i have a dc 4-1 header and a test pipe and everything is gravy

 

it probably blow the packing out of the resonator and muffler after a while, though. Ive had it happen and seen it on other peoples cars.