Originally Posted By: nthach
I've used Mopar Combustion Chamber Cleaner with good results, as well as good old GM Top Engine Cleaner I can't get in Cali anymore.
That Bar's JDM stuff is similar to the Mopar stuff, which can also be had at a boat house as a generic TEC or combustion chamber cleaner.
Did you notice much difference in the performance between the Mopar/Bar's products and the GM version? The fact that it is no longer available in the CA market makes me wonder what, if anything, may have been significantly different about it.