i have a white ep hatch with a raceheader and exhaust.. when i run the car it doesnt take more than a 5 or 10 miles to get the rear of the car coated with a very thin layer of what appears to be soot or exhaust.. this is normal because i have no cat..? i dont drive the car hard or anything for this to happen, i would understand over time of beating on it maybe..just curious if anyone else experiences this..?

 

most all of us do. I regularly clean my bumper. I also have a race header and no cat. Just hope you don't have the HKS which has been known to melt bumpers

 

its normal, every car ive owned has done it.

 

thanks..it just must be more noticeable on this car of mine cause its white.. ive never had a whit car b4.. and no hks here.. t1r, but i did have a cheap *** header testpipe combo the drew the exhaust back and made it look crooked from the rear and that begen to burn the bumper.. so i got a race header and its all good now!

 

Mine too.