No can't say that I have noticed any increase in HP as any increase in HP from just the Injen Power Package would be nominal at best. It does feel a bit more responsive and I do like the look and sound of it though and with the AWE exhaust it sounds awesome!
If you are looking for increased HP...
Personally didn't find it worth the money considering there are very limited options for coding in standard mode and the fact that they removed certain features from the standard mode made me pass on Bimmercode.
I found that there are only 5 useful things that you can do with Bimmercode in standard mode and that is in the Z4 mode. In the Supra mode you only have like 2 useful things to code without going into advanced.. I also noticed that they removed some features in Bimmercode that used to be in the...
Do you have any other aftermarket mods on the car? Which sensor was loose? Did you check to see if any of the other sensors are loose or not plugged in like maybe you forgot to plug one back in?
What is the error code it is giving you?
Do you have stock or aftermarket exhaust? Did you notice a decrease in the "pops" and "bangs" sound after installing this?
Another forum member said that there was a decrease in sound after installing this. Can u confirm?