Was the factory exhaust that restrictive ? or was the factory tune set way conservative to maintain warranty issues.Back when I was into the type of crap you see in Truckin Magazine, I was around the folks that made the Mopar Performance headers and assisted with the Mopar Performance PCM that was sold at the dealer. One of their projects had everyone pretty pleased with themselves. They were working on the Dakota 5.9 and managed with a tune and headers to add about 75 Dyno proven HP. That was astounding back then.
Your right 75 hp. is a ton to leave on the table.
I just wonder what the reason was.
Happy New Year Blaine !