Javier 94 Z28

Anyone with an A4 use something other than HPP+ to fix the speedo difference after changing the gear ratio and/or wheel/tire size? I hate HPP+, my car will slam into the rev limiter in 1st if I don't back off the gas to let it into 2nd. It shouldn't be doing that and I have a feeling that it is the HPP's fault. Thanks

CANTONRACER

Well, you can get it programmed for the new gears or buy something that intercepts the signal to fool the pcm.

Javier 94 Z28

Any idea of what exactly? I don't even know what to look for. The dealer can't even do it here. Thanks