Only stupid people recommends you to save up money and buy sports cars. Sports cars has higher maintenance and only for rich bois like ktards here commenting.

Go watch all those Japan GT, Aussie Saloon Cars, British Touring Cars Championship, all of them are using those non sports cars to race. Yes they do spent lots of money for all the modifications but to say that non sports cars cant compete with sports cars are utter BS

Just get advice from experienced car enthusiasts, they will adviced you properly on how to get that teeny weeny gain from your stock engine. If you like to make your car pretty, guess you can go to any custom bodykits workshop and get advice.

Btw, slapping a straight flow loud exhaust on a standard engine is just annoying and waste of money. Go study about exhaust flow first and how it affects engine power before do the changes. You can get a nice S Flow mufflers with some rumble sound if you go to those proper exhaust shops like Jian Hang or Everco in Sunway