Slip-in baffles?

[crofty1984]

Howdy y'all,
I've got a pair of ridiculous exhausts on my 650 BSA. It's loud as sin. I've seen those baffles that look like a tube of smarties with holes in you poke down the back of the exhaust. How effective are they?
I'm likely to be changing the exhaust later this year, so I'm reluctant to buy a couple of standard ones to have them surplus to requirements in 6 months.
Thanks,
Dan

[airsafari87]

I think I still have one laid around that was made up for the SC Projects CR-T can I had on my old bike.

I had it made up `Just in case' but never actually rode the bike with it fitted. I did test fit it in the garage though and it definitely muted it somewhat.

If I can find it in the garage and you want it you are more than welcome to take it.

[sjtscott]

I found some on ebay, generic ones that got retrofitted fitted to some oval Micron Race Cans for my old blackbird I was 'missold' as road legal years ago. It did mute the sound somewhat but no where close to quiet enough. I ultimately bought a visually matching pair of Microns but E marked with road legal baffles.

[graeme4130]

The effectiveness of them depends largely on the length and the style of the exhaust you're fitting it too.
They do work well though, and my 2016 ZX10R with a full titanium system goes from 102bd at 5,5000rpm to 97 at the same rpm, so that's a massive difference

[cmaguire]

The Arrow cans on my Triumph came with those 10cm long 'bungs' that are effectively a tube about half the diameter of the open exhaust that is closed at the end inside the exhaust and has holes drilled into the sides.

It 100% quietens it down but it also cripples the performance, worse at the higher revs obviously.