simple just follow the steps:
install free flow exhaust and muffler.
cam timing advance.
aifirlter K&N cone wala laga lein. free air miley gi pick barhey ga.
pick barhey ga air filter sey us k baad camtiming advance hoi hogii to piston k speed etc fast hojayee gi free flow exhaust k waja sey gases easily niklii gein. car smooth bhi hojaee gii aur 10sec to nai 12 sec ho gi i think. lekin engine k life kam hojaeii gi. remember.