klutchdust wrote:
Yeah sure, funny but after reading about so many issues that "chip' installers have after they "chip" one wonders why you would do that to your vehicle. I burn rubber with my muscle cars not my 2500HD.
Hope I don't jinx myself, but after the better part of 20 years and, personally, 3 different tuned diesels including 1 deleted truck, over several hundred thousand miles, I can't say I have the same fear.
Did have 1 tuner that would wig out if you tried to adjust tire size/speedo, but no issue with the engine tuning.
I can burn rubber with the trucks and our muscle cars, trucks tires are too expensive to though, lol. But they sure do run good.
The old Dmax and CR 5.9 Cummins were fairly anemic without tuning. Better than any gasser truck even today, but not by much compared to new gassers. But even a mild 60hp tune makes a big difference in performance.
I thought you are or were pulling with a 12 Valve. Did you leave it stock?
Sorry this is off topic. Hope the OP finds a new cat (or a nice shiny piece of straight exhaust pipe if vehicle is smog exempt.