Wow when I switched to my long tubes I was very surprised in the power gain. This was the only mod I've ever acrually felt a difference with, besides gears, it was such a difference that the car actually ran like crap for a minute or two before the computer caught up and compensated for the increase. Somethign must be wrong if your losing power....
Yeah, its still in the shop about to get a retune because its running a little lean (A/F in the 12's). But there's a fuel pump issue that has to be resolved first.