A good service, oil, air, fule filter changed, spark plugs changed too. Maybe even gearbox oil, diff oil, coolant and brake fluid if not done.

As for BHP increase. The easiest options to start are breathing mods, some form of induction kit or a up-rated panel filter and de-baffled airbox and also a de-restricted exhaust system.

 

Change the water pump, change the thermostat also change the water elbow at the rear of the cylinder head. Flush the cooling system and use BMW anti freeze. :thumbsup

 

great thanks 4 help people