best way to spend $3k

[ronnyromero]

hi, i'm not that expert with yaris/vitz, but i'm getting one in 2 months (2007 manual, sedan) and i'd like to know what would be the best way to spend $3,000US on it. I've heard it can go up to 150hp pretty easy. I'm not going for any major engine changes but maybe some parts replacements for aftermarket lighter ones, intake, exhaust, engine mounts, anything that can do a change but wont harm the engine...you tell me. Forget about labor, i can get anything done almost for free (dont ask), it's the parts prices and needs i'm interested.

I already had a sunfire with something around 5k in parts (i crashed and sold it) and i currently have an AWD 98 eclipse with 12k in parts (this is my baby).

This yaris will be a daydriver and mostly used for job, and since gas is getting expensive i want to keep the engine intact, but anything else that can help would be appreciated.