well... i didn't hear that so i was just wondering if it is possible, anyways i have no access to a blow to a blow torch anyways as i will be working at my apartment so the sand paper is still the better option i have... i got to find some heat paint somewhere though
Don't worry about it. The best thing what I used to do when I change my oil and the car is lefted I paint my exhaust with many coats of high temp spary cans that you can find in shops
that sells nail, paint..etc. So everytime I change the oil I give it a few coats, and that worked real good.