Okay, so I repacked my single MTC exhaust and now it doesnt breath properly. I did not pack it too tightly or put in too much material. The can was empty and loud as heck but is now deep and quieter. Nice. But why isnt it flowing the way it should?

A few years ago I had to re-pack a set of end cans for my Triumph Tiger rat bike. I used this stuff:

http://www.thermalvelocity.co.uk/Sil...FaTMtAodZhUA4g

Really easy to use. Fit loose, get the exhaust up to temperature and it expands to fill the void and provides excellent sound damping. Perhaps it'll help you?

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Simon

Brighton, UK

Sweller, thanks Ill check it out. But why isnt my exhaust expelling the gasses correctly? What is supposed to happen?

Can you post some pictures? It's very hard to tell what the problem is from your description.

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If you can read this you're faster than you look...

Interceptor,
I dont have any pictures. I did use ceiling insulation (budget). But it feels as if the bike isnt pulling clean since the repack.

Are you running with a dB killer/baffle inserted? It is quite likely that the "loose" nature of loft insulation (not as dense as exhaust packing material) has caused some, a lot, or all of it to blow out the perforation on the inside of the silencer. If you've got a dB killer inserted it is likely to trap the fibres as they are release through the perforations, partially blocking your exhaust and choking the bike.

I've had this problem before with aftermarket car silencers: Packing material blew out of Magnex back-box on my old Subaru WRX, which caused poor performance, overheating and a melted cat!

Take the silencer off and dB killer out and have a good look through it...

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