I'd go exhaust you will always hear the difference when you're driving- the CAI will only give you those power gains at WOT- the rest of the time its going to feel and sound like stock. A sound system is just something to get stolen, and make the car slower. Tint is ok too- since you can use it all the time, but is it really going to make the driving experience more exciting like exhaust will?

If this was on a 3800, I might go another route first, but the LSx engines sound so good with exhaust. With that said, I did do a CAI first on my GXP- the exhaust was 100x more satisfying for me. I'm sure I gained a lot more power from the CAI, but it doesn't make much of a sound difference.

 

CAI
Do the tint next payday.

 

I would do an exhaust. That was the 1st mod on both my Montes, then shortly thereafter the CAI.

 

Tint.
I MISS the old 15% on My ALERO. Monte Came with 50% LMAO its like NO TINT. Removing my tint next weekend, good way to drink .. But I orderd Pre Cuts online Going to do it mySelf. Only 80bucks for 35%. Was going to go darker (20%) but the law here is Not so good here 35% is still illegal.

 

I think with 350 you could get new mufflers stuck in (resonator delete mabye) and a cold air intake, I suggest that lol.