Before buying my Megabusa I decided that I wanted one to use as a weekend and occasional track day car, one thing that always concerned me was the level of induction noise with the open Pipercross sausage airfilter and the ability to upset the noise limits at certain tracks. After reading on here that a lot of cars are very much at the top end of the drive by noise limits I decided that I wanted to make mine a little quieter from an induction noise point of view.
After a bit of digging around on here I came across forum member cosmick who had previously helped me with another issue I had and I knew he had quite a lot of experience making and adapting standard airbox's to fit under the bonnet after reading one of his posts. After contacting him he was more than happy to help me out with an airbox (adapted GSXR 750 X airbox to fit the Gen 1 Hayabusa) that fits under my V8 bonnet and I am over the moon with the results. Virtually all the induction noise is gone now and the engine feels very crisp and smooth, I'm still yet to take it to a circuit but I'm more than confident that it will slip under the noise limits easily. I'm sure if you are interested cosmick will be able to help you with all the details.
Many thanks to cosmick!
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[Edited on 19/8/14 by On_the_busas]
[Edited on 19/8/14 by On_the_busas]
[Edited on 19/8/14 by On_the_busas]