[finalday7]

omegafiler Just the opposite. When it comes to performance, the Hypertech is one of the least aggressive handheld tuners for your vehicle. They're specifically designed for stock to near-stock vehicles.

In fact, if you did have any extensive mods beyond the basics, such as cat-back exhaust/intake, that's when the handheld wouldn't be the best route and you'd really want to look into a custom tune.

Of course, you can go with a custom tune with a stock vehicle and still get much better performance than a handheld. But for mileage, I know at least one other user on here has tested the Hypertech and got a noticable increase in MPG.

X2, My truck is completly stock performance wise and I saw great gains with the Hypertech.

 

[finalday7]

Actually handheld programmers are fine for your basic boltons such as, headers, intake, exhaust etc. But I think you wanted to eventually put on a turbo, if that is the case and it is something to be done in the near future I'd recommend custom tuning. I like the handhelds because of 3 main reasons. Being able to adjust for new gears, Bigger Tires and much better MPG.