Hi,

I can't really understand your question but I have a MM 2-in-1 exhaust and it's very good. It is much lighter -- it weighs about 3kg altogether compared to 4.5kg for each original can (and I've not weighed the original header pipes but they must be another 3kg).

I've travelled about 17,000 miles using it: down to Morocco and over the Atlas mountains and down to the bottom of Jordan and back and it's been fine especially noting the decreasing quality of the fuel as you head towards the equator.

The only problem I've had with it is that the small heat protector plate (approximately where your leg is) fell off the other day. I mentioned it to MM but not heard back. But it has done a few miles so maybe that's fair enough.

I have no idea if it gives you more power but that's not why I bought it. I wanted to avoid pipes under the sump and to make the bike lighter. Whether you want to do that for the money MM charge is another question.

Cheers,

Ian