stimpster

I get carbon dust on my back bumper after driving a few hundred miles. I don't drive it much, so when I don't wash it for a long time or go on a trip I notice it. The car drives fine (19,500 miles on it), but I'm not sure if it has been re-programmed before. I have no mufflers, just pipes from the cats back to 24" chrome tips pipes that are larger than the input pipes. Inside of the pipes aren't that dirty.

Any ideas? Is it bad? What can I do to get rid of it, if possible?

Thanks in advance for the advice!

BigZee71

iTrader: (5)

Every Fbody I have ever owned has done this (two LT1s' and one LS1). Your talking about the little black specs that build up on the top of the rear bumper?

I just keep is well waxed and used a clay-bar to remove it.

Justin93

iTrader: (7)

Yep I have the same **** on mine, Even my dads vette had this as well. Just keep it waxed and you should be ok!

stimpster

Good idea. It washes off. I run 93+ octane and I thought that might have something to do with it also.

Thanks for the info! No need for me to worry.

I guess I remember my 2001 Z06 did the same thing... similar engine.

samson_420

iTrader: (1)

It's a GM, as long as it does not spit oil out of the pipes it's all good.

noriceinside

iTrader: (6)

i start to notice it about week after i wash it. so i use it as a reminder that its time again

stimpster

Thanks. I was curious and feel better that its a common occurance.

WarShrike

iTrader: (5)

What is funny is driving on a dirt road, you kick up one serious rooster tail in these cars. Then the whole rear deck is plastered with a fine powder from the road. Kinda funny IMO.