Oh Geez
Obviously Intake, exhaust, programmer. I got a AFE stage II intake and MBRP Turbo back stainless exhaust. The intake made a little difference in 3-4-5-6 gear and the exhaust added power in all gears.
If your looking for a programmer Id look at Hypertech. You can get it for under $300.00 and it adds power, removes speed limiter and adjusts for speedometer bigger tires. Of course you can get a ton of combintaions on these....
Best of luck with your new ride.
