I bought one for my 2004 Cadillac DeVille dts have to replace from the front to the exhaust pipe less than a year went bad . I called the dealer on the this matter they wanted me to pay for the testing etc. I never proceed with the situation because slot of money was put out from the beginning. I tried the cleaner and everything else still nothing.
catalytic converter
I bought one for my 2004 Cadillac DeVille dts have to replace from the front to the exhaust pipe less than a year went bad . I called the dealer on the this matter they wanted me to pay for the testing etc. I never proceed with the situation because slot of money was put out from the beginning. I tried the cleaner and everything else still nothing.