Hmmm actually not hard to source car workshops in USJ area. Visit those workshops/tyre shops at those industrial areas will do. Unless u got money to burn, there plenty of high perfomance/modifying car shops in sunway, but i think u will be laughed since u driving a merely normal car.

How about a visit to eneos at 1U? Although slighty expensive than other shops, at least there plenty of choices for car related items.

Agree, N1 is only catered for rich ppl with evos, skylines n subarus rather than regular joes like the many of us. I dont really like kakimotor coz the seller there is dam aggressive. I prefer eneos, although pricing wise u can get lower price outside.