Vanimaniac

So today driving home car is running fine. Then I accelerate hard to get into another lane. Immediately the car starts vibrating. Feels like the exhaust is doing it. Now the car sounds exactly like a WRX. No check engine lights. I haven't rolled around under the car yet. Don't have a vag or I'd check with that as well.

Any thoughts?

Thanks,
Van

gragravar

other than being WAY too loud, it was a nice sound.

you might have a crack or a warp where the header meets the manifold.

that is my post margarita arm chair diagnosis for the evening. good luck.

CO AVANT

start if you rev the engine a little. A Coil pack could be going bad. Happened to me twice since the GTRS install, car was vibrating pretty bad but still running fine. Didn't get any CEL's. Might need to go get yourself some new "R" version cp's. Do a boost leak test if you have an air compressor. Other than that you need a vag to diagnose further.

Vanimaniac

It's probably spark plugs. Car sounds just like last time. Gonna replace tomorrow and see.