hi
proffesional exhaust work shop is not all over qatar.i can recomend a shop with 25 experince.go on salwa road towards industrial area and pass all of the following:
1- midmac fly over
2- qatar decoration round about
3- fish market round about
4- tata showroom round about
after tata showroom drive for about 2 KM on right side enter the service road witch is parallel to salwa road. the first shop is a tyre shop with a big roof sign (perrilli) ,the next shop is the correct one.