sorry for such a noob question but everyone suggested a brenspeed CAI / tune so I checked out their site, and there's like 90 options to choose from.

http://www.brenspeed.com/mustang_2005/airkittuner.html

which one is THE one?

 

depends on what you are looking for

the c&l CAI, and jlt 2 CAI are prolly the post common from brenspeed that i have seen anyway.

 

Those are just different brands on the Cold Air Intake (CAI). Just a choice on what brand you like or what look you like. The tune comes in the SCT handheld tuner and you will get tunes based on your mods and what the octane rating on the fuel in your region is.

 

dont worry this same post comes up about once a week...
Basically the C&L or JLTII are the most poular due to good reviews and best hp gains...C&L is about 100 bucks more basically because the finish of it, ive also heard fitment is better...JLTII can be painted any factory color for a little extra money, and supposedly gives an extra 1-2 hp over any other CAI....Ive also heard steada with the high flow inlet tube is pretty good

 

Yep really not hard, more like 5-7 choices.

 

ok thanks everyone, I thought there was a brenspeed brand CAI, so when I went and saw all these other brands but no brenspeed I was confused