Quote:
Originally Posted by TSX_WS
Well.... the fuel that I give to my car doesn't seem to give it much carbon. Should I try cheaper octane 87 fuel?
Oh and ur sig says that ur car is stock, but u just said that u have a header.... busted!!! 
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Regardless of what fuel you give your car, you will have carbon, just that most of it is in the cat, so you don't see it on your exhaust tips. Since the header is before your cat, there will be carbon on the inside of the header for sure. Just look at your stock exhaust manifold.