I used to get limp mode/misfires everytime I full throttled it last summer. Car was shaking and sounded like an sti with exhaust. Changed coils and plugs and still got it. So instead of doing carbon cleaning or changing injectors I did the seafoam treatment. Sucked 3/4 of it thru the engine bay. And 1/4 of it in gas tank. The limp mode/misfires disappeared immediately. I did nothing else to the car. Coincidence?
But I will still do a proper intake valve cleaning in the future.
JB4 cp-e IC AMS exhaust BMS DCI AR DP's METH
19" VMR VB3 Stoptech BBK TC KLINE VORSHLAG