well there are 2 ways u can improve your air intake..you can either buy a panel filter which would replace the original filter you already have in the car...you can get a k & n one for eg...the good thing abt it is that you don't have to make big mods to instal it and the results are quite good... the second alternative would be a pod filter.... according to k & n's web site this gives a better air inflow than the panel one but the big problem is about where to place it in the engine bay to get the coldest air possible...getting hot air isn't very good, it actually makes you loose power when driving in traffic for eg where there isn't much fresh air circulating around the car..i've installed a pod filter with a kit. i ust love the sound it makes when giving big accelerations... you can hear the engine suck in air... i'm still thinking of ways i could improve how much cold air i can get in there