both shop i forgot edi the name .. but quite famous..exact location now not sure .. later will update this post ..
Name : didnt remember. the workshop owner name is Simon ..
Location : located at kepong. his shop is a modification workshop located infront a big recycle center .
Scenario : send my car there with only damaged piston rings. and end-up with rm 12++ overcharged bill. i did ask to install the GAB absorber. then after everything is installed, i go there and see. white smoke come out and timing way crazy .. like mesin basuh .. he said it was the turbine fault . why can laa . i just sent the turbine out for rebuild 3 days before. then quickly he came out with another excuse .. saying got black oil in the exhaust .. so when start the car, it burn there .. resulting the white smoke ..

the next day, i pay him and sent to other shop.
Name : didnt remember. the workshop owner got two . one of them ppl call ah fai ..
Location : located at puchong . from sunway toward puchong. IOI is at ur right side. straight and there will be a toll area, u turn before the toll. after a small temple at ur left, go in left then right, u will see superbike shop. the shop is a corner lot 2nd row after the superbike shop. infront got a glass shop.
Scenario : send my car for engine transplant. after 2 months, still no work ..when the work does started, the process kinda fast. but their work are louzy. the engine mounting is unbalance. u can see the engine tilt abit to downward to the right. they stole various of previous engine stuff such as boost controller, silicone hoses, intercooler silicone hoses, complete front bay engine wiring, driveshaft, shiftlight and controller. i got angry and stuff but they denied it and dont want to replace .. since im selling the previous engine and the new owner already paid, i have to buy all the stuff that missing and cost more than rm 1k.