Squeezing any kind of decent headers into the engine bay on these cars is a challenge at best. Everyone seems hell-bent on making them fit the factory header-back exhaust, which seems to be incompatible with a decent set of headers.

The rest of the exhaust is easy, I know, I custom-made one this winter. I'd love to see someone find a way to squeeze in a decent set of long-tube headers, actual 3-into-1s with 3" [or better] collectors, and maybe, just maybe, equal-length tubes. If we could get really good headers, any exhaust shop (or hillbilly like me with a welder) could custom-fit the rest of the exhaust to mate up to the headers easily enough.