opp61 ... what spark plug u using ? Brand and range .... because my car boost more than 0.6bar ... got misfire ... don't know is the coil problem or plug problem .....
Ok,found this article about how to make twin muffler/exhaust system that is consist of s-flow and straight flow at the same time.
but the problem is i dont know where to find the parts and if i can use another part...