[sperry]

I wouldn't try to replace that with a non-flex pipe. You'll never keep the cross-pipe gaskets sealed up as the headers expand/contract drastically when they heat/cool. Plus it would be better to measure center to center on the studs on the heads themselves, as a set of headers off the car will have moved around a bunch just by being off the car.

I've actually got a stock crosspipe with header wrap on it in fine condition I'll unload for cheap if you want it.