Okay guys...no war please, let's keep it simple.

I have read alot about different methods of ridding carbon in the engine. POWERFOAM , I guess you basically spray into your plug holes and flush out. Do you crank by hand and how? or do you just start car and purge out the exhuast?

CARB CLEANER, I guess you spary into a vac line somehwere ( which one? pic would help) and rev & smoke till it clears out.

Just a quick opinion pole here as to which is the better treatment with better results and less risks? My fear is dislodging chunks of carbon and locking up the rotors.

Is it also true that carbon build up unbalances your rotors, which in turn makes for rough revs?

How much smoother will ya ride REALLY be????!!!!

 

It certainly COULD unbalance the rotors. I don't know that there is any definitive proof that it is enough to cause vibration. My S4 N/A seems to be somehow unbalanced because I'm getting some slight vibration at certain RPM's. My TII however is smooth as can be right up to redline. I might try it and see if it smooths the N/A out.

-Joe