I got a Satria 1.6 SOHC 16V with UK specification. I test run the car, at 4th gear reach to 5000rpm/160kph and going up very slow. Engine sound very rough. What can I modify to increase the power of that car (except turbo or change engine)?
You can add a Magic Jet. It can increase your car perfomance up to 15% and save fuel. It looks like a piece of card and very easy to easy with motify anything. Just put in filter there and sure you can do it by yourself.
Your Proton Stria 1.6 can't go anymore faster in 160kph, it's because of the (ELECTRONIC CONTROL UNIT) speed cut...