[06hoss]

It depends on the CAI that you buy. For instance the K&N kit and the Granitelli kit don't require flashing your computer, but a lot of CAI kits do. I would recommend buying one with a flash tuner since you are leaving horsepower on the table when you don't get a tuner. I have the Diablo Predator tuner while a lot of guys have the SCT tuner. Which one you end up with now really depends on the parts they are packaged with...mine was packaged with the C&L CAI I bought...both tuners are very good. With a tuner you can flash the computer for a high octane tune for more horsepower. It advances the timing and enriches the air/fuel ratio for more power and to prevent a lean condition. Also once you have the flash tuner you can read any trouble codes the computer creates and also erase them. You can also flash the computer for when you change your rear end gear ratio...the old days it required a new speedo gear on the tranny. You can also eliminate your top speed limiter and change or eliminate your rev limiters. You can also change the temp that your radiator fans come on and also eliminate the traction control completely or some cases the swith will default to off when you start the engine. IF you have an auto tranny, it will also improve the shifts.
I went back and forth between the C&L CAI and the JLT before I settled on the C&L. C&L won a CAI shootout among 11 manufacturers in the January 06 edition of 5.0 magazine. The JLT came in second. IMO, the tuner is definitely worth the extra money, but a CAI without the tuner will give you some more horses, just not as much as if you use a tuner.
Good luck and have fun!



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