I now can't pass the 105db noise limit at a track day that I like to go to.
Ironically, I have the opposite problem. My road legal end can has a removable baffle and even with it in, I now can't pass the 105db noise limit at a track day that I like to go to. I think the last time that I went there it was tested at 107db. To me it doesn't seem very loud? So I'm now faced with the prospect of having to research and buy a new replacement end can or put the standard can back on and suffer the subsequent drop in performance. My bike has had the Full Monty done, so ideally needs a less restrictive end can for the full performance benefits. Good luck with your alterations.
I took a coke can, crushed and rolled it then hammered it inside the baffle, now it's a bit quieter.
Quote from: Mustang on 18 October 2017, 08:54:45 pmI took a coke can, crushed and rolled it then hammered it inside the baffle, now it's a bit quieter.Possibly not a good idea, from my dyno charts you can see the affect on power and fuelling that having a baffle in place makes, if you're adding more restrictions then you're likely upsetting the fuelling and dropping your peak power further.FUEL Standard SS Oval End Can with Baffle inSame can with Baffle out (Notice much smoother fuelling and 7BHP more power)I know that short cans are in vogue but the Ivan's kit especially the Full Monty is designed around a free flowing exhaust system, a longer can with more packing can generally be run without a baffle without being obnoxiously loud. A shorter can generally needs a baffle if you don't want to piss people off so may not always be the better option.