I have searched the world over for Mid. tube headers for a 2002 Sierra 4WD. I can't find any. Farmtruck says I need them or long tubes to take full advantage of a new cam I might put in.
I have polished the inside of my stock cast headers so shorties won't help any.
Long tubes would loose ground clearance which would negate off roading.

?? Does any one have a line on some Mid length headers?? [ I called up Bassani headers]
Thanks