I found this product that cleans the residue on bumpers from exhaust fumes. The product is Liquid Glass Prep Cleaner. All you have to do is put a little on a cloth and it rubs right off. I have a Apex Silver Evo and the bumper gets extremely black. I purchased it at Pep Boys for around $10. Now I don't have to buy one of those carbon fiber pieces for the bumper. Hope this helps!

 

I woulda tried goof off™ before buying it.

 

I've always used clay bar. Works wonders.

 

it does but aren't you rubbing off clearcoat and paint at the same time???

 

I know you're being serious but I can't stop

 

I am not sure about goof off It may remove the clear coat. That stuff is very strong and very hard on the surface.

Any non abrasive pre wax cleaner will work. I would use a high end product like Pinnacle paintwork cleansing lotion or P21s paintwork cleanser. Always follow up with a good wax when you strip the paint. If the surface is well waxed it should come off with a spray detailer just spray and wipe a few times per week.

 

maybe it is me? did i miss something?

 

Clay bars dont hurt your clear coat. Thay work great on the body, windows, and the lights on the car. Takes off whatever is on the surface. I use them at the body shop all the time...

 

Mr. Clean magic erasers work wonders on exhaust stains and are super cheap!

 

i've used any non-abrasive wax to remove the excessive build up....never had a problem...you might need to repeat the process the greater the buildup......

 

I say keep it on there...adds personality and character!