Originally Posted by
zhpnsnv
Interesting thread. Back when I first owned my car it had a pretty significant dip, so I had the dealership send the ECU out and do that fix. It helped a little, but it was still there.
I sold the car and the following was done: Dr. Vanos, GAS DISA, and a custom ECU tune (also perf muffler). The dip is completely gone in basically all circumstances. The only time I felt it a little was at 1/2 throttle, 4th gear pull one time. Not sure what the custom tune did or if it turned off the DISA altogether. All I know is it pulls beautifully, way better than when I sold it. It's weird -- I accelerate in first and second totally expecting it to be there because that's what I'm used to, so it's odd now that it's gone.