I just bought this car last month and love it! But.... it could use some help in the power dept. It's all stock except the K&N air filter I just installed. I can't find much performance info so I'll ask you folks.

I'm looking for basic bolt-ons like intake/exhaust, maybe a chip. I heard there is an airbox mod?? Who's stuff works, who's doesn't?
I would also consider N2O since I have a generic kit I've never used lying around. Can it be used "dry" on this motor? Stock fuel pressure ok? Will the stock computer manage the mixture? I was thinking of a 75HP or so boost.

Any way to quicken/firm-up the transmission shifts?

Any info on how to turn off ASR? (I was almost rearended last week because this feature wouldn't allow me to accelerate)

Any info is appreciated