Thanks for the help, Turns out some how my wastegate had closed virtually shut, quick fix, problem is gone, however obviously I dont have the power i did but oh well.. in doing so however now i have a check engine light and threw a couple egr codes and an evap code... Murphy's law fix one thing...

around 15psi and essentially stock, just a heavier fuel pump.I think i can describe the wall hit that's happening a little clearer as to why I thought drivetrain, when I start to accelerate everything runs great, then thud and the nose of the car drops like I hit the brake and I almost slow...

Yes I see that my post is similar to the Galant, but only in the noise during acceleration (like hitting a wall) the problem is dif. bought a 97 GST FWD turbo 5spd with a 6bolt swap 16gturbo, upgrades large intercooler, piping, injen intake, atmospheric bov. Ngk plugs and msd wires. under...