you've heard me beat this drum before... but the tti pipes aren't much more money and you *know* they fit like a glove.
to me, it's what's the cost of frustration? fiddle ******* around with something that only half *** fits and works vs. something that pops right on like it's supposed to is worth a few extra kajiit kuble koins to me.
fwiw, i have a pypes kit on the 68 nacho and it hits everywhere. the quality of the components is nice, but the fit is straight dog water.