Air box mod save $$$

[Greg_imp]

Ha, DAC.

I got spanked for my part in this kerfuffle but it occurred to me that even though this is an old thread, new members are coming in and reading what is old stuff for us.

I did the controlled testing after this dust-up and think my results are repeatable. After all we're talking real time and dollars and people should be informed.

If the mods are being done for aesthetic reasons or simply because it's there, then that's fine, but facts is facts.

(Don't taze me dude!)

Air box mods are very popular with the Bonneville crowd. Often referred to desnorkling the air box, this mod, combined with a less restrictive exhaust supposedly lets the engine breathe easier and produce more power.

Greg did dyno testing of various intake and exhaust configurations. I find the results interesting and worthy of follow-up. But the results seem to contradict the claims of aftermarket manufacturers and the experience of other riders.

I haven't done any dyno testing and can only go by seat-of-the-pants "testing". My first mod was a Staintune. I did not notice any increase in power. When I opened the intake with a TSR air funnel, the bike seemed a lot more lively.

Several other members have done intake and exhaust mods and seen significant HP gains, verified by dyno testing.

Greg, I’m not disputing your results, but I remain unconvinced that opened up air boxes and CAT free exhausts will only affect A/F ratios while HP numbers remain unchanged.

Now I've done it

Yes, it would be good to have some confirmation of these results which were done without a piggyback fuel controller.