Here's what my car does. Whenever I get into boost the car falls flat on it's face. It's like it's trying to push a 18-wheeler or something. This happens right around 4 psi of boost. Is this fuel cut happening in a massive way? Driving an hour on the highway today I had to very gingerly accelerate up hills or the car would buck and chug all over the place. The car did this every once in a while before when the engine wasn't up to operating temperature, but now it does it all of the time. I have a stock 14B running off the 9 psi wastegate spring. The only mods I have are a 3 inch down pipe to a 2 1/2 inch exhaust and a KN filter. Should I try a different maf? I have a stock one from a 1st Gen eclipse in there now.

Perform a boost leak test

Check/change your fuel pump and fuel filter. Seems to be clogged and not giving enough gas for the motor.

^^ my car was doing this and it was a clogged fuel filter.

I'll check the fuel filter first. That seems like an easy start.
Thanx for everyone's help.

Dont forget the.blt sammich

New fuel filter didn't do it. Could this be a mass airflow sensor problem? I have a spare I could swap out to try. Or is this a fuel related problem?

Plugs/wires?

My first Dsm did this. I was test driving it at a used car lot and got into boast, it bucked chugged tripped and fell, he knocked 1500 off the price and I spent $10 on plugs xD