Question from a New buyer

[CASTREX]

Hi guys, nice forum you have. I'm from Costa Rica (central america... if any one doesn't know) and I'm about to buy a Yaris 5 speed manual sedan in a few weeks. I actually liked the LB better than the sedan, but in my country, the LB is only offered only with the 1.3L engine, so i will have to settle for with the sedan.

Any way, my question is regarding thhe HP and torque gains that I can expect from the basic mods that every body is performing into their cars:

AEM CAI
Exhaust (Tanabe??)
Headers (Megan...?)


I've red some data about the AEM CAI, claming 5hp gains... but i wonder what would be the overall gains of the CAI+Exhaust+headers

I'm not looking for a racing machine, but the Stock Yaris is a little underpower for me and i want to see if that can be improved it with little $$$


Thanks for all your comments!