BUDDY FIRST THING U SHOULD DI IS TO CONVERT UR CAR ON PETROL IF IT IS ON CNG..OPEN DA FULL PETROL TAP SO CAR CAN ABSORB FULL PETROL WITH GREAT PERFORMANCE.,,ADD 13 INCHES TYRES....CHANGE DA EXHAUST ..FREQUENTLY CHANGE OIL ,OIL FILTER,AIR FILTER....CHEK MOUNTING..........,STEERING BUSHH..CHEK DA BATTERY,RADIATER.....AND LAST DA PETROL FILTER........