recently i just installed a midpipe and downpipe, and was very happy with the results. the fourth day after having this installed, my car started idling funny like it was about die. i noticed also during low RPMs the car struggled, but after about 3k RPMs the car seemed fine, boost and everything feels good. my guess was a bad injector?? anyways, if anybody has any ideas of what the problem is, help a brotha out please. thanks.

 

Are you pulling any codes ?

 

did you try adjusting your rpms?

 

What is your boost pattern? Other mods? Vacuum at idle? Did you remove the air pump?

To be honest, your symptoms could be several things, anything from a bad FPR/solenoid to a lightly blown motor.

 

If that were to make it "better," it would just be masking a problem.

 

Just FYI, that's what my car did when I blew the motor at the track. Low/idle rpms were horrible, upper rpms/driving was ok.

The questions rynberg asked need to be answered to help you out.