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johnc

M4 Exhaust

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johnc
I am thinking of installing an M4 slip on - has anyone installed it?  what are the results and do you need a PC?

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AlbatrossCafe
Try the search - there are plenty of threads (many more than below) on the M4 already as it is a popular exhaust because of its cost.
 
 
http://fz07.org/thread/2008/m4-ejk
 
http://fz07.org/thread/4484/exhaust-advice
 
http://fz07.org/thread/3023/using-m4-slip-on
 
http://fz07.org/thread/1002/m4-exhaust-stage-1-kit
 
http://fz07.org/thread/3678/m4-hyperlow-exhaust
 
 
You don't "need" a fuel controller as this engine is pretty small. It will run without it but of course the bike will run more smoothly with it.
 

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cherenkovblu3
Installed one on mine last summer. Absolutely love it, awesome sound. Installation was cake. I used an angle grinder to cut the stock exhaust. Just have to make sure you clean up your cuts really well so that when you tighten the clamps down you dont have any leaks. Took about 1hr give or take in total. They claim you dont need to tune it for the new exhaust, and i'd say thats true so long as you dont take the baffle out, i noticed no performance degradation at all. Once I pulled the baffle out, I may have lost some power on the low end, but It might just be in my head. I'd recommend this exhaust to anyone who wants to spend >$80020150528_204850.jpg20150523_213409.jpg
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dtrust68
I have the 2016 and the exhaust looks a lil different from the 2015. Really want the m4 exhaust but unsure how or where to cut. If anyone has pics of a 2016 with the m4 let me know. Also pics of where it was cut. Thank you

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jdodd
I have the 2016 and the exhaust looks a lil different from the 2015. Really want the m4 exhaust but unsure how or where to cut. If anyone has pics of a 2016 with the m4 let me know. Also pics of where it was cut. Thank you
Do you have pictures? The exhaust, to the best of my knowledge, is 100% the same?

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dtrust68
I have the 2016 and the exhaust looks a lil different from the 2015. Really want the m4 exhaust but unsure how or where to cut. If anyone has pics of a 2016 with the m4 let me know. Also pics of where it was cut. Thank you
Do you have pictures? The exhaust, to the best of my knowledge, is 100% the same?
 
 
I'll take some
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ducttapewd40
I have the 2016 and the exhaust looks a lil different from the 2015. Really want the m4 exhaust but unsure how or where to cut. If anyone has pics of a 2016 with the m4 let me know. Also pics of where it was cut. Thank you
M4 provides some very good instructions with the pipe (with pictures and everything).  I was even able to download them from their website before I even ordered mine.  If you cut the headers as close to the Y junction as possible, you'll have more than enough overlap for a good fit and don't have to worry about the headers being to long no matter how close you get. 
I used a band saw to cut, then a bench grinder and dremel tool to clean it up afterwards.
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dtrust68
I have the 2016 and the exhaust looks a lil different from the 2015. Really want the m4 exhaust but unsure how or where to cut. If anyone has pics of a 2016 with the m4 let me know. Also pics of where it was cut. Thank you
M4 provides some very good instructions with the pipe (with pictures and everything).  I was even able to download them from their website before I even ordered mine.  If you cut the headers as close to the Y junction as possible, you'll have more than enough overlap for a good fit and don't have to worry about the headers being to long no matter how close you get. 
I used a band saw to cut, then a bench grinder and dremel tool to clean it up afterwards.
 
 
Awesome I just did that and I guess the 2015 and 2016 are exactly the same. That instruction manual is what I needed. Thank you

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