2006 Aveo LS Intake and Exhaust

[mrpenguin76]

I'm currently looking into any and all ways I can improve throttle response and power in my Aveo. I've heard a CAI and a Muffler upgrade improve fuel economy a bit and wanted some recommendations on mufflers that are worth a damn. Additionally, any general tips on improving fuel economy. I know the simple things; reduce weight, increase power, but anything special you guys know about? Sometime down the road lighter rims would probably help with reducing unsprung weight.
Any help is appreciated.

[Daox]

Aerodynamic modification is a great step to improve fuel economy. Lots more info on this kind of stuff at ecomodder.com.

I recommend these two pages:
65+ efficiency mods
100+ hypermiling tips

[rhyder7]

I doubt you will see noticeable mpg gain, though there will be a slight improvement in throttle response and sound.

[northguest47]

My throttle response increased significantly with the under-drive pulley, it further improved when the intake and exhaust were done. With all 3 changed it was a lot better than stock, but still has that same weird time delay that one has to build into ones downshifts when blipping the throttle. I always assumed this major time delay has more to do with the PID controller (or whatever control algorithm) in the fly by wire throttle. Trust me I would love to improve that delay on my '06 too, its quite annoying.
I would guess a lightweight pulley set would be the best mechanical way to improve that instantaneous throttle response if thats what you were meaning.

Etec II crankshaft underdrive pulleys - $99.99 (2004-200