hey guys i need help my 8 is running really bad. it ideals fine but when i give it throttle while in neutral its slow to respond and it wont go past 4-5k rpms. and when ever i drive it its real ruff and it doesn't want to accelerate.

there doesn't seem to be any vacuum leaks that i could find. and when it started this i was driving home from work and started noticing a whistle like a air vac. leak or something. so i drove it home and back to work like that,but before i got to work it started getting worse i would floor it and it wouldn't go anywhere and the whistle got louder. i have no idea where to start to fix this thing. i really need some advise. please help i have to get this fixed as fast as possible. im without a car....... :banghead:
thanks,
turbo'd8

You should have a compression test done, but it could be a list of things (motor mounts, coils, gas, etc.) You still have it under warranty, right?

Is your car really turboed ?

If yes and you're using Stock Greddy kit, check the hose, its a KNOWN weak spot. Also, remember Tune it.

If Stock N/A form, check 3 plastic tube that goes around the intake manifold and SSV tube for leaks.

ok ill check those things, thanks guys and if any one can think of any thing else let me know.

Bad cat?