Best 318 headers with no modification?

FWIW, with the cheap headers you will either need the oil filter adapter or just use a shorty filter. You'll also need to lose some if not all of the end studs on heads, these go into your coolant passage so use sealent on the bolts. They also break off in there sometimes so be careful. You will also want to lose the old style starter and go with the newer style small starter. The headers will fit with the big old style starter but you cant get it out unless you take the headers off! You might have to add very slight dents to the tubes to get the bolts in.

you might have to dent the one tube to clear the steering coupler. Oddly the first time I installed my headers there was plenty of clearence there. Second time I installed them in the same exact car different 318 and they hit the steering coupler. Cannot figure out why. :dontknow:

check out the headman shorties they might fit your budget still but work better. There is a thread about them on here somewhere.

Id go 2.5" pipe off the headers 3" if you want to be really loud and obnoxious, although the 2.5" pipe would preform better I think. Personally id go with the 2.5"