some people have come to amaze me how they can't read. Bro he clearly stated it't NOT a header. lol :deadhorse:Its not a header. its a test pipe. R18 doesnt have headers, its built-in the head.
The stock metal thingy u remove is the stock catalytic converter
its a good DIY +1
OK, I did some research and now I know the answerHey guys, I need to know what does this mean "Will eliminate catalytic converter" it's in the ebay link description. I thought that there's only one catalytic converter and it's the exhaust system!