dear rozzzzzzz,wht do u think,intakes or changing filters in K&N,plugs into irridium,spark plug into tripple technology , these changes could effected on perfomance.whts ur point?
Sir
These are just a usage of cash, no need to do all that.
Just change oil/fuel/air filter , plugs according to your car manual interval.
Keep the interior and exterior clean by a good quality wax, like turtle or F1.
Keep the tires and alloys in good shape, install a good ICE system, if you like.
Keep the electrical/battery/wires and distributors/radiator/hose pipes clean and get leatherite covers and central locking, if you want.
Regards