Pipe ID?

Andy Nightingale · Jun 17, 2022

This pipe came on a CMB 67 that was in a boat I bought on here, unfortunately I can’t make use of it as it’s unsilenced so I’m going to part with it, first though - what is it and is it worth advertising?

John Beardslee · Jun 17, 2022

Andy Nightingale said:
This pipe came on a CMB 67 that was in a boat I bought on here, unfortunately I can’t make use of it as it’s unsilenced so I’m going to part with it, first though - what is it and is it worth advertising?

Looks like an 11 cc “Muffled” Mac pipe to me.

Wasted wages · Jun 17, 2022

You can always add a little "canned " muffler to the stinger if it's too loud..

FloridaScaleBoater · Jun 17, 2022

It is a Mac's exhaust pipe and it is a muffled pipe.
The stinger end. Outlet looks like it's been damaged/modified though.

Mike Hughes · Jun 17, 2022

Confused. You said it was unmuffled but the pic says different. ???????

Andy Nightingale · Jun 18, 2022

Mike Hughes said:
Confused. You said it was unmuffled but the pic says different. ???????

What you guys in America call muffled is our idea of a straight through pipe. In the UK we have to comply with 82db at 20 meters, so our pipes are double the (physical) length of yours, with baffles inside a silencing section and you can’t see directly though the pipe like you can a muffled pipe. Unfortunately bolt on end mufflers don’t do anywhere near enough to reach our noise levels.

Thanks all for your help. Bearing it mind it does have a bit of damage to the output side, what would you price it at?

I attach a photo of my Seaducers with fully silenced European pipes, think you can see the difference!

wayne middlemiss · Jun 19, 2022

John Beardslee said:
Looks like an 11 cc “Muffled” Mac pipe to me.

certainly is

Bill Eilers · Jun 19, 2022

FloridaScaleBoater said:
It is a Mac's exhaust pipe and it is a muffled pipe.
The stinger end. Outlet looks like it's been damaged/modified though.

Your right u can see the can on it. Cmb has one similar

Pipe ID?

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