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Discussion Starter #1
Hi guys,

I've had my 2014 Ninja 1000 for around a year now and the first mod I made was to replace the stock exhaust cans with M4 GP slip-ons. Sound is much better and louder, but after a year, maybe too loud. Particularly "boomy" around 3k rpm (that noise that really gets in your head, even with ear plugs).

There's a set of Two Brothers Racing Black Series M2 slips on that have become available locally at a decent price. I'm wondering if these will these be an improvement....i.e. less boomy, more bassy note, more refined sound, but still good volume.

I know there are videos on youtube, but the audio is so variable with the recordings, it's not particularly revealing.

I'd appreciate comments from anyone who has experienced either, but ideally those who have experienced both pipes on the Ninja 1000 / Z1000SX.

Thanks for your help.

Cheers
Reece
 

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Maybe apples to oranges but I had an m4 on gsxr 600 and my friend had 2b's on his cbr600 and we were same volume level.

Not sure if that is going to be the same on the N1k. 2b's post good info about db level, hp and weight on their site. I am not sure that m4d does the same.
 

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I just called M4...

They have additional baffles called "Stage 2" baffles that reduce the sound above the stock Baffles. They are $35 dollars each and you buy them directly from M4...

I wouldn't be surprised if wrap them with some exhaust filler it will quiet it down even more...

Do you have this? and its still too loud?
 

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Discussion Starter #7
Thanks for your replies.

So I just bit the bullet and bought the TBR Black series pipes. They look and sound great; less boomy around the 3-3.5k mark, but still a great, slightly deeper, note.

BUT...as I put them on i realised my total rookie error...they aren't compatible with the 2014 integrated panniers. I haven't tested yet, but I can't see how they will fit. Nightmare.

Next step is to check if there's any special brackets that will allow me to lower the height of the pipes to accommodate the panniers (unlikely as the pipes will also need to be re-bent to sit lower I'd imagine).

Failing that, I'll look into the stage 2 baffles as suggested by Riskmaker76.

Thanks for your help all.

Cheers
Reece
 

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Your looking to perform an impossible feat... Return them if you want bags.

Yoshimurs and Akprokavich both have 2014/2015 slipons that fit with bags...the yoshi unfortunately have their quiet baffles inserted and not removable on the 2014/2105 model. I had the yoshi without baffles on my 2012 and it sounded awesome but I don't want the new ones that have the baffles on my 2015. Im not going to have bags so I might go back to the pre 2014 yoshi and just mod the bracket like others (elongate the hole).

Your best bet is to return the two bros and get the stage 2 baffles...call m4. They were very nice in the phone. They might offer even more ways to reduce the sound.




Thanks for your replies.

So I just bit the bullet and bought the TBR Black series pipes. They look and sound great; less boomy around the 3-3.5k mark, but still a great, slightly deeper, note.

BUT...as I put them on i realised my total rookie error...they aren't compatible with the 2014 integrated panniers. I haven't tested yet, but I can't see how they will fit. Nightmare.

Next step is to check if there's any special brackets that will allow me to lower the height of the pipes to accommodate the panniers (unlikely as the pipes will also need to be re-bent to sit lower I'd imagine).

Failing that, I'll look into the stage 2 baffles as suggested by Riskmaker76.

Thanks for your help all.

Cheers
Reece
 

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In the "exhaust options" or another exhaust thread we had a few posts about which slip-ons worked with bags.
 
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