Why not chip it?

Speedlab has an available unichip for 30k. I believe applicable naman siya for the ES.

Next upgrade would be a K&N Drop-in. Mahirap muna mag-SRi since mainit. Baka magka-heat soak lang. :doh:

If you're not happy yet, which I doubt especially if you're after little gains only.

Kung after ka sa power na kailangan mo when someone intimidates you on the road, andyan naman ang NX Express for 45k. +50-75whp on one click of a button. Depende kung gusto mo button activated (F&F style) or WOT-activated.

Ta's when you close the tank, normal lang yung driving.