Message: Can't remember who, but they heard from Kenne Bell that the headers produced 6 or 7 HP on a supercharged for 4.7 truck. Not too good. I got the Borlas now, a waste of money, bad design, and badly dented in two headers.
IP Z-tube, JET Stage 1, Borla headers, Gibson Exhaust, PowerSlot Rotors, 17" wheels, Gaylord cover, MTX stereo, HO Cams and Intake waiting to be installed
P 1
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Subject: KB 4.7 headers?
RE: KB 4.7 headers?