Dear sifus, Ive been using this car for more than 2 years. It is stock standard.Auto transmission.I feel that an upgrade to the performance would make me fall in love with my car again..planning to keep the engine untouched.perhaps just minor upgrades..better feel perhaps.please advice what should i do.. 1.iridium spark plugs 2.Air filter (k&n? Works engineering?) 3.cable plugs (what brand?) 4.does grounding wire helps? If so what brand? 5.After market exhaust extractor (pls reckon me where can i get one) 6.will 2.3 inch be big enough for auto? It is a daily drive car..just want to fall in love with it again.Thank you in advance. Sorry for the noob questions.