well, according to the dyno charts, the Caddmann mod on stock pipes still netted 7hp (more than 10% improvement) and 4ftlbs and made the midrange fatter. I see no reason not to do the intake side in relation to the exhaust you're running. After looking at what the air has to squirm through to get into the motor in these pics vs. what the stock exhaust looks like, The dyno shows exactly what I'd expect.
Separate question: if you buy the Thunder or other aftermarket kit that uses adaptor backplates, are you forced to lose the IAC's? I ride in weather down to 40*, and bought a F.I. on purpose because of the always start/always idle aspect.
I've got the PCIII and V&H straightshots on my bike, just trying to decide what to do for an airkit. I'm not sure I'm in love with the look of the Caddmann kit on the Mean Streak. Also, do the aircleaners stick out more than the stock ones? The guides seem to say not really, but I have the Kawasaki wrap around crash bar on my bike so I need to make sure it'll all fit.
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