[BC-2]

Hey guys, I've been lurking on the forum for a while but my Grom is still more or less stock but I decided that a new exhaust would be my first mod. It's been a while now since our bikes have been out but I haven't been able to keep track of the latest available exhaust systems that are now available. Any recommendations? Looking for either a slip-on or full system as long as it's good quality (I want it to last). Any suggestions would be appreciated!

 

[Railer150]

Same here looking for a overall great exhaust. I wanted the FMF full system but just heard that they are on backorder


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[Shelbythekid]

Whatever you do, dont waste your money on a slip on. The yosh slip on doesnt really sound louder and dont do anything for power. I know, its on my buddies bike. My Big Gun full system sounds so good and was cheap.

 

[Double-C]

M4 exhaust looks great and sounds like a beast

 

[BC-2]

M4 exhaust looks great and sounds like a beast

Looks like it's in your avatar, bigger picture please!

 

[Double-C]

 

[BC-2]

Nice! Thanks Double-C

 

[wildgromin22]

I'm in the same boat. Can't decide between the Two Bros and the M4. The Two Bros has impressive HP gains but not sure about the high mount. Help?!

 

[Dregali91]

FMF full system is awesome! I love mine

 

[Gotwake424]

M4 all the way!

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[wildgromin22]

Do you know HP and torque gains with the M4?

 

[Double-C]

It's on M4 website but it doesn't say if its with or without the silencer.

 

[Double-C]

I work in a Honda shop and I know that every bike I seen run on the dyno with same exhaust never produced the same power. There is a lot of factors that go in to that, like air temp altitude and type of dyno. Here is some good reading on that Steve's DIY Dyno - Different Dyno Types

 

[Gotwake424]

No a clue, but throttle response improved with the m4 and intake mod

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[GromTactical]

MNNTHBX exhaust. Made in USA. Aggressive sound and performance. Named after an Alice in Chains song. Owner supports the forum. Low profile, clean look. Mean as hell. Gas it up and burn it down.

 

[Hondaman1100]

I ordered a Moriwaki megaphone it was shipped today. I have not my bike yet and we had another snow storm today. Geees I hate winter.

 

[bukuinc]

X2 for the MNNTHBX exhaust! Best one I've seen/heard. So glad I ended up going with it!
http://www.hondagrom.net/forums/7-grom-talk/3381-got-my-mnnthbx-exhaust-installed-video.html

 

[Town Drunk]

I took my time with this. The m4 was one of my top choices, loved the sound. I also liked the Formula a lot. I ended up going with the MNNTHBX exhaust.

Mnnthbx
Formula
M4

 

[gromhawk]

Hotlaps FTW!!!!!!!!!!!!! I have the single Full system.

 

[Grom'n-BR]

I've got a system for sale