Altima Gains

[specialxknc]

im looking in to a 2003 altima se and i was wondering what the best way to increase the HP would be for around $2000-$3000

[XENADEN]

With out going turbo that would be to change headers, exhaust cat-back, add cold air intake (with fan insert), and reprogram ECU. Also you can change the cooling fans, but thats not necessary

[specialxknc]

thx so how much horses would that give me??
What if i did go turbo? how much would it cost and how much hp would it give?

[XENADEN]

that depends on the engine (for this engine I don't know of a turbo I could look and see if there is one out there. but for hp on the other upgrades it depends header type, exhaust size and ecu reprogramming. cold air intake 15-40 depending on type (manufacturer)