Tunes make an enormous difference to an untuned Quad Cab, but not as much for the Regular Cabs. Bang for the buck for a QC is second to none.
Personally, I wouldn't enjoy driving a QC unless it had a good tune.
As far as power goes, Torque numbers rise 80 lbs. Ft. in the QC and less in the RC.
That doesn't mean 80 gets added to the final (highest or peak) torque number, but gets added on the way to that number. Its been too many years to remember but let's say the increase in Torque comes in between 3400 and 4600 rpm.
That makes the increase in power during acceleration, very noticeable and useful.
QC Torque Management is (or can be) removed as well, with a tune. That way, engine power is applied during the shifts. Most Tuners simply incorporate this into the tune (shutting Torque Management OFF), and if you have it done to a QC, don't tow with your truck up hills at wide-open throttle or your transmission will (sooner than later) complain.
If you don't tow at wide-open throttle with your QC, feel free to have Torque Management shut off. It will give your rear tires something to do, particularly during the 1-2 shift.
Shift point r.p.m. (auto trans) can also be raised for wide-open throttle. Mine is set at 200 km/hr. (roughly 125 miles per hour), for the 3-4 shift. The factory shift point is too early and the engine is forced to operate at a lower than optimum r.p.m. right when the truck is plowing into considerable "wind".
Other parameters can also be tweaked such as fan duty cycles, idle speed, knock sensor behavior (Sensitivity, On or Off) and other things, via tuning.
You purchase a handheld controller (from your Tuner) that will contain the tunes from them, based on their expertise and what you have for mods (if any). The more information you provide, the better chance for a great tune.
The controller containing your new tune(s) is then plugged into your OBD II port near the lower edge of the dash, near the steering column.
Once it's plugged in, follow the instructions which is a few key On key Off cycles. Easy Peasy, and it only takes a few minutes to complete.
Chris Jensen does all my tuning and I find his tunes the highest in overall quality compared with the (3) other Tuners I've tried.
Hope this helps.
Personally, I wouldn't enjoy driving a QC unless it had a good tune.
As far as power goes, Torque numbers rise 80 lbs. Ft. in the QC and less in the RC.
That doesn't mean 80 gets added to the final (highest or peak) torque number, but gets added on the way to that number. Its been too many years to remember but let's say the increase in Torque comes in between 3400 and 4600 rpm.
That makes the increase in power during acceleration, very noticeable and useful.
QC Torque Management is (or can be) removed as well, with a tune. That way, engine power is applied during the shifts. Most Tuners simply incorporate this into the tune (shutting Torque Management OFF), and if you have it done to a QC, don't tow with your truck up hills at wide-open throttle or your transmission will (sooner than later) complain.
If you don't tow at wide-open throttle with your QC, feel free to have Torque Management shut off. It will give your rear tires something to do, particularly during the 1-2 shift.
Shift point r.p.m. (auto trans) can also be raised for wide-open throttle. Mine is set at 200 km/hr. (roughly 125 miles per hour), for the 3-4 shift. The factory shift point is too early and the engine is forced to operate at a lower than optimum r.p.m. right when the truck is plowing into considerable "wind".
Other parameters can also be tweaked such as fan duty cycles, idle speed, knock sensor behavior (Sensitivity, On or Off) and other things, via tuning.
You purchase a handheld controller (from your Tuner) that will contain the tunes from them, based on their expertise and what you have for mods (if any). The more information you provide, the better chance for a great tune.
The controller containing your new tune(s) is then plugged into your OBD II port near the lower edge of the dash, near the steering column.
Once it's plugged in, follow the instructions which is a few key On key Off cycles. Easy Peasy, and it only takes a few minutes to complete.
Chris Jensen does all my tuning and I find his tunes the highest in overall quality compared with the (3) other Tuners I've tried.
Hope this helps.
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