I need some advise
I've got a 2015 xtr and want to lose the weight of the stock exhaust and fit either OTR or the MM 2 into 1 system.
I don't want it to be to loud and I want it run smoothly like the stock ones do.
I don't want to be doing any other mods to get the bike to run smoothly after fitting a new exhaust system.
I have read lots of posts regarding cost difference and that the MM system can be problematic to fit.
I'd be prepared to spend out more than double for the Akro if it's much better than the MM.
What does everyone think?
Many thanks simon

The MM 2-1 system can be troublesome to fit and it does rob the bike of top-end power. There are also reports of bad fitment and poor quality welding on OTR headers too. See here. Dominator systems don't seem to be much better either in terms of quality and fitment from what I have heard/read - but they are cheap as chips.

There are also Creptus and Huzar exhausts to consider too.

I think if you want quietness and power, you're possibly better off sticking to a 2-2. If shedding weight and/or increasing ground clearance are your main priorities then trying a 2-1 is probably worth a shout.

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Blimey that's put me off OTR straight away, thanks for that.

For all your exhausts needs please visit our shop at this link, there's one for every pocket and are 100% guaranteed quality, pleiades forgot to mention them, sorry

http://www.xt660.com/home/mtc-exhausts/

I would have mentioned MTC, but it sounds like he's after a high level 2-1 system for his XTR. Unfortunately that is the one permutation of exhaust that we/MTC don't offer... yet.

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Thanks chaps

Based on what you have said I'd stick with stock cans.