Guys, newbie here. i'm driving a wira se 1.5 (m). can anyone tell me how much power can push to limit for 4g15p? i'm not planning to do engine swap or slap on turbo (due to crazy fuel price nowadays ), but planning to bolt on some goodies such as performance air filter, volt stabilizer, spark plug power cable and iridium spark plugs. what do u think? is it worth to invest on those items? how better the performance? 2) also planning to change my suspension kit to lowered type. prefer lower60%+comfort40%. if budget not more than rm2k, which brand and type u guys recommend? :hmmmm: 3) what are the differences btween oil catch tank and fuel regulator? how does they works? sorry aa guys..maybe noob question.. thanks a lot!