Recently bought '02 GT, with ~3200 miles. It has Bassani X-pipes and AFT-CATs, otherwise stock. Seems to run great, MIL is NOT on, I've noticed after driving a light "dusting" of black dry dust sooty residue on the rear of the car. Looks to me like something that would come from incomplete or improperly burned fuel but I don't know that's the case. Any thoughts would be greatly appreciated.
Exhaust Residue
- Thread starter Desperado48
- Start date
StangYellow
Founding Member
- Sep 11, 2002
- 1,052
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The cat converters burn off the sulfer in the exhaust gasses by increased heat. And since you are running an off road pipe, you are seeing the result of not having cats. Its very normal. Just make sure that when you hammer on the gas pedal, there isnt white smoke or blue smoke out the back 
Then you have issues
Then you have issuesThanks but ...
Thanks StangYellow but I'm confused by something in your response. You said what I'm seeing is the result of not having cats but I thought cats were part of the exhaust system that's on this car ... Bassini X-Pipes with AFT CATs. I see something that looks like cats. Did you mean the result of not having stock cats or what?
Thanks StangYellow but I'm confused by something in your response. You said what I'm seeing is the result of not having cats but I thought cats were part of the exhaust system that's on this car ... Bassini X-Pipes with AFT CATs. I see something that looks like cats. Did you mean the result of not having stock cats or what?
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