The question as to what option is best for your car cannot be answered here. Each and every car, engine and setup is unique in its own respects, with different vehicle owners also having different circumstances, goals, budgets and expectations etc. In saying that, if you are contemplating one of the aforementioned upgrades, please give us a call and we can go through all the pros and cons distinctively applicable to your individual needs and work out which one is right for you.