once i created thread that what to do to get more out of my altis 1.8 Sr, people said that nothing can be done go for the swap
i studied a lot and then end up with swapping the engine
if u really want to race then get ur engine swapped simple, down piping, air intake, plugs will do nothing except 1-2hps
i have tried that nothing happens
high octane will give u reponsive throttle thats it!