One thing I did notice and the guy running the dyno commented on it too was a very loud high pitched whistling sound after about 7500 rpm. By 9k you couldn't hear anything but that. A friend of mine got a short video on his phone I'll try and post that too.
Nothing in the pipe before the main baffle, sounded more like intake noise. The guy running the dyno suggested drilling some holes in the airbox. I've seen a couple of threads on airbox mods that I may try when I do the header mod but that too will have to wait for the tuneboy.
Thanks for the tip. I havent had the tank off yet but I'll go ahead and have a look to see if I can find anything. Also don't worry the last airbox I drilled was on an old RM 125 and after that it would stall in a light rain.
I've never heard it while riding but people behind me have commented often, so that leads me to believe its in the exhaust. The zard baffle is now history, sounds nice too. I'll go out this weekend with some buddys and let you know
I happend to pass one of the guys I go riding with on the interstate today, the whistle is gone. Traffic was bad so i went buy him in 3rd and 4th screaming and he said there was no whistle. I guess it was the zard baffle after all. Thanks again for everyones help.
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