Or theres the 10 cent resistor at radio shack if you cant afford the ten bucks!:lol: Search around the forum for headers. Also, intake is a possibility, although there is a lot of argument about that subject, but a K&N in the stock air box should be worth the $$$. As for chips, this ain't a turbo-diesel or an oversized american V8 detuned to pass emissions. Toyota motors are generally efficient enough that they are already putting out very close to optimum HP.