hmmm, on my iroc, i have the slp exahust system (3 inch, from cat to back). It empties into one muffler that has dual outlets that are both on the driver side, my driver side tail light (mainly break light) is really dark red now, i want to take it out a clean it, but i dont want to have to do this annaully, any ideas?

 

Are you sure your exhaust is causing it?

 

I hope so, its not on the other side (left) and the exahust exits on the right side, so i am assuming that could be the only thing that is causeing

 

I say take it off and try to make it airtight when you put it back on... then all you need to do is wash the outside every once in a while.

 

I have the same setup with a Dynomax with no such problem. The bumper cover would get slightly stained above the exhaust, but since I had to lower the tips a little to clear my trailer hitch, I don't even get that anymore.

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1985 Yellow IROC-Z 5.0 HO, T-5 3.73 Torsen, 4 wheel disks
PFCM pads, GTA wheels, Koni yellows, B&M Ripper, Dynomax