Installed u7146 - No Difference

[buddy_boy8403]

Maybe my butt dyno is broken, but I installed the u7146 Diable Sport Tune on my 02 Stang and it feels like I lost power! I definately do not feel a power increase. At the same time I installed a K&N FIPK. I should be able to feel something between the two of them... but dont.

[christina]

Which tune did you install? Is the car stock other than the filter?

[buddy_boy8403]

I installed the diablo sport predator tune, and yes, the car is stock other than the K&N FIPK. I havn't modified the predator tune at all. What I have noticed is that it runs at lower RPMs... but I havn't noticed a power increase at all. I've had opinions from several other different people as well and they all through that if anything, it lost power.

[mikel]

What do you mean it runs at lower rpm?

[buddy_boy8403]

I mean it idols at a lower RPM after the tune than it did before the tune. It also runs at lower RPM with half throttle during normal driving. (It took off about a 500 RPM difference from pre tune to post tune).