Best way to start?

[str8Yaris]

Idk... but I would start with the cold air intake first.... that's the most easy way to start...... the just start heading towards the back..... u want to get the headers & performance exhaust after let the car breathe ...... u don't want pop in the 1zz & not have anything to really let that air out... u need good back pessure on your car if u want it to perform...... u want the air to get out as fast as possible. Usually ppl throw the 1zz when they have most of there mods already & want more power.... Idk that's my opinion, ppl can beg to differ.... everyone works on there cars different. Happy Modding

Originally Posted by Beyond

Hi all.. first time posting here, I've got a 5spd 2004 xB that's got the same 1.5L engine as the Yaris and finally I'm looking into bumping up the performance a notch. I live in a mountainous area so any added power in 2nd gear would really be appreciated.

CAI , 1ZZ-FE Throttle Body swap, Header, Exhaust... which one should I start first?

Any combos of parts that work particularly well together?

It's a newbie question for sure, but I'd hope those of you who has gone down the performance route and tried different product combo can recommend your preference, and of couse any personal nuggets of wisdom.

Thanks in advance