hi bevo what does the la choppes air kit consist of and has the new fi controller made much difference john
the kit is mostly just a different kind of plate that you screw onto the intake and a much larger air filter that is exposed 360 degrees, and the front cover with a nice 'X' design. the stock filter you're replacing is so restrictive that i'm not sure how any air gets into the bike with it, but i did love the design. the instruction manual for the LA kit claims that no fuel processor is needed if you install it, but i really don't believe that. (if you get this make sure you have some loctite red or blue handy because the kit doesn't include any)
it's hard to say how much the fi processor improves performance just on its own because i added it in conjunction with the airkit. i installed it with the stock settings that came with it. the manufacturer sets it based on having an after market air filter with stock exhaust. it's easy to adjust it, and i may have to since i have noticed a slight dip in gas mileage.
together, there is a very noticeable increase in power and torque, and better exhaust note. i'm very happy with it.