Are you guys tuning your car yourself, or are you just running a canned PCM? A lot of people that complain of the lowend loss also don't tune their cars, just bolt this or that on and expect more power.
Going from stock to a 3" DP and PEM's or headers definately requires a tune, that's a BIG jump over the stock setup.
I was merely running a canned DHP 1.0 at the time.
Forest Green 1998 GTP Sedan - SOLD
VS, 3.2, TOG, GMPP Suspension, 3EP Tune
13.179 @ 106.57 w/2.005 60'