cure for exhaust discoloration?
especially the right handside one of the exhaust cans tends to be discolored; get browny-yellowish by time. this (the right one of them) is the real working one, isn't it? I tried some solvents too,that would make no harm (!) to the metal, but nothing improved a bit. WD40 won't work, for instance. by the way, is there any relevance this change of color and the life span of the catalyser?
Last edited by endurin; 1 Jul 2008 at 23:12.
Reason: grammer
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