Bafflectomized 919 - Wrist Twisters
 
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post #1 of 28 Old 09-30-2010, 09:06 PM Thread Starter
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Bafflectomized 919

I've been very interested in gutting my exhaust on my 919 but I'd like a first hand encounter of what it sounds like because youtube videos just don't cut it. Anyone in the Chicago area willing to let me listen to their bafflectomized 919?

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post #2 of 28 Old 09-30-2010, 09:49 PM
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Quote:
Originally Posted by simeonov View Post
I've been very interested in gutting my exhaust on my 919 but I'd like a first hand encounter of what it sounds like because youtube videos just don't cut it. Anyone in the Chicago area willing to let me listen to their bafflectomized 919?
IMO dont do it. I did the bafflectomy, and still decided I wanted cans. Bought a set of Delkevic stubbies which are the best sounding cans next to the Yoshies again IMO. Then I bought Yoshiies lol. If you go to sell stock cans are great to have.

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post #3 of 28 Old 09-30-2010, 09:57 PM
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Quote:
Originally Posted by simeonov View Post
I've been very interested in gutting my exhaust on my 919 but I'd like a first hand encounter of what it sounds like because youtube videos just don't cut it. Anyone in the Chicago area willing to let me listen to their bafflectomized 919?
Here's two pretty good recordings of my cans Bafflectomized. I captured with a high quality digital recorder at full PCM 1500kbps and these MP3s are 128 mono at 44.1Hz. I made sure they don't clip out too. Pretty good recordings is what I am getting at. Way better then a video camera recording on YouTube.

So, before you cut into your cans.. I'll trade you straight across for mine already done with the tips. I took them off years ago and packaged them away. They had maybe 5000 miles on them.. if that. They are in perfect shape and come with these tips which fit snug and do not rattle. PM me if interested.

Without Extension Tips installed

With Extension Tips installed



More info HERE 7th post down.

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post #4 of 28 Old 10-01-2010, 06:37 AM
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Here is a comparison I made with a before and after.
YouTube - Honda 919 Bafflectomy

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post #5 of 28 Old 10-01-2010, 06:56 AM
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Very nice comparison!

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post #6 of 28 Old 10-01-2010, 07:26 AM
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I regretted the bafflectomy and traded a member for stock pipes again, but I love my Sato exhaust sound.

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post #7 of 28 Old 10-01-2010, 07:50 AM
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Bafflectomies are loud... Almost too loud.

When I went to a track day they had a sound check, measured 10ft back the pipes were putting out 98.5 decibels at 6k rpm.

Needless to say riding without earplugs for any length of time was uncomfortable!

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post #8 of 28 Old 10-01-2010, 07:57 AM
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Perhaps a fully gutted can is that loud. I took out the largest inner pipe and left most of everything else and feel that the sound level is roughly the same as with my 2Bros single can.

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post #9 of 28 Old 10-01-2010, 11:26 AM
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I've got a set of de-baffled pipes... and I am still on the fence. I don't think they are TOO loud... but I don't care for the sound frequency between 55 and 70 MPH. At that speed the sound seems to resonate in my helmet and it's not pleasing to the ears. Without a helmet it sounds fine. Faster than about 75 and the resonating sound is gone and the pipes sound great.



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post #10 of 28 Old 10-01-2010, 12:22 PM
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Did it........hated it..........went back to stock.

Currently looking at aftermarket systems.

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post #11 of 28 Old 10-01-2010, 12:26 PM
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Quote:
Originally Posted by brickonwheels View Post
Perhaps a fully gutted can is that loud. I took out the largest inner pipe and left most of everything else and feel that the sound level is roughly the same as with my 2Bros single can.
I didn't gut the pipes, just took out the center pipe & left everything else in tact... 98.5 is what the meter read!

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post #12 of 28 Old 10-01-2010, 12:27 PM
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Quote:
Originally Posted by cmurphy84 View Post
I regretted the bafflectomy and traded a member for stock pipes again, but I love my Sato exhaust sound.
it doesn't get better than Satos.

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post #13 of 28 Old 10-01-2010, 02:06 PM
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I bought a set off ebay ($50) and LOVE them, way better than paying hundreds for aftermarket pipes, and I still have the stockers for when I sell the bike one day.

"You live more in five minutes on a bike like this going flat out than some people do in a lifetime" - Burt Munro
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post #14 of 28 Old 10-01-2010, 02:17 PM
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Just to add a little here...it wasn't so much the volume that was the problem with bafflectomy pipes, it was their super wraspy, empty can sound. My Satos are second hand with MANY miles on them. The cores are rotting out and the packing is probably shot. However, they still sound better than when I removed the end piece and short pipe from the stock cans.

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post #15 of 28 Old 10-02-2010, 10:56 AM
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Quote:
Originally Posted by sml2727 View Post
I bought a set off ebay ($50) and LOVE them, way better than paying hundreds for aftermarket pipes, and I still have the stockers for when I sell the bike one day.
This is much what I did, I bought an extra set of ebay, and took out only the last peice of the pipe, it was about 6in. I love the sounds, not to loud for me.

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post #16 of 28 Old 10-02-2010, 11:41 AM
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Originally Posted by cb919er View Post
This is much what I did, I bought an extra set of ebay, and took out only the last peice of the pipe, it was about 6in. I love the sounds, not to loud for me.
Yeah thats all mine is to....I noticed while rideing in large groups of bikes I cant hear my own bike so I needed to do something, I must of redlined 5x one day(most of the time passing cars) but now its all good

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post #17 of 28 Old 10-02-2010, 12:09 PM
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Quote:
Originally Posted by sml2727 View Post
Yeah thats all mine is to....I noticed while rideing in large groups of bikes I cant hear my own bike so I needed to do something, I must of redlined 5x one day(most of the time passing cars) but now its all good
I just wanted a little more sound, and to sounds just a little different than stock, But, I didn't want to get stuck with it, and hate it if i cut my factory pipes...

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post #18 of 28 Old 10-02-2010, 12:43 PM
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Quote:
Originally Posted by cmurphy84 View Post
Just to add a little here...it wasn't so much the volume that was the problem with bafflectomy pipes, it was their super wraspy, empty can sound. My Satos are second hand with MANY miles on them. The cores are rotting out and the packing is probably shot. However, they still sound better than when I removed the end piece and short pipe from the stock cans.
1+


Exactly!!!!!!!!!

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post #19 of 28 Old 10-02-2010, 01:35 PM
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Sorry for the mixed reviews on the baffelctomy, seems some of us like, and other don't... I have a video on youtube that, in my opinion, sounds a lot like the bafflectomy really sounds... Do a search on RhodesTTu... then watch the video listed as 919 gravity cavity ride by... and you'll see my chubby arse on my 919 with the baffles cut out...

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post #20 of 28 Old 10-02-2010, 08:32 PM Thread Starter
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This is all great stuff. I knew there would be differing opinions that is why I would love to hear it in person. From the several videos I’ve seen, this is what I’ve gathered: I like how it sounds at idle. I also like how it sounds when you get on the throttle up until a particular point that I believe ‘crakerjac’ mentions. If there’s nobody in my area I think it’ll be best to get an extra set of stockers just in case I hate it. So, anybody around Chicago willing to let me listen to their gutted pipes before I reach the point of no return?

- Motocycho let me think about it for a bit. I’d rather do it myself for fun but I’ve
been getting lazy lately, I’ll shoot you a pm when I figure it out.

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post #21 of 28 Old 10-05-2010, 09:49 PM
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Quote:
Originally Posted by Davreece View Post
Bafflectomies are loud... Almost too loud.

When I went to a track day they had a sound check, measured 10ft back the pipes were putting out 98.5 decibels at 6k rpm.

Needless to say riding without earplugs for any length of time was uncomfortable!
Osiris has just the back cap bafflectomy, (inner baffle still intact), and I can't hear him when I'm riding behind him. Granted, I have aftermarket exhaust, but he's still pretty quiet. Much better than stock, but still quiet.

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post #22 of 28 Old 10-06-2010, 10:52 AM Thread Starter
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Quote:
Originally Posted by g00gl3it View Post
Osiris has just the back cap bafflectomy, (inner baffle still intact), and I can't hear him when I'm riding behind him. Granted, I have aftermarket exhaust, but he's still pretty quiet. Much better than stock, but still quiet.
I guess I can try that and do the rest in stages. I'm way to curious to hear what they sound like in person. I'd rather listen to someone else's first but I'm itching for some sound. I'm going to look for another stock set just in case I hate them.

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post #23 of 28 Old 10-06-2010, 10:55 AM
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Where did you obtain those tips? I really like the sound difference it gives!

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post #24 of 28 Old 10-07-2010, 03:38 PM
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I got a set of cans from Otis out of Monroe LA, he did a partial baffelectomy, and installed a short piece of pipe. I removed the short pipe, and I LOVE the sound, it might bother someone else, but this is my bike, and I LOVE it!

Thanks Otis!

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post #25 of 28 Old 10-07-2010, 03:52 PM
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Here is yet another option to bafflectomy:

https://www.wristtwisters.com/f94/gut...ans-22693.html

I did this about a year ago. Has held up well and still sounds great. If you're too lazy to hit the link and read through, I cut the end off the stock cans, pulled out the innards, repacked with metal lath and FMF packing, then had it all welded back together. Basically, I created a set of aftermarket cans that look like stockers for around $70. You could do it for $30 if you have a friend who can weld.

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post #26 of 28 Old 10-13-2010, 09:13 AM
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Quote:
Originally Posted by jay313 View Post
Here is yet another option to bafflectomy:

https://www.wristtwisters.com/f94/gut...ans-22693.html

I did this about a year ago. Has held up well and still sounds great. If you're too lazy to hit the link and read through, I cut the end off the stock cans, pulled out the innards, repacked with metal lath and FMF packing, then had it all welded back together. Basically, I created a set of aftermarket cans that look like stockers for around $70. You could do it for $30 if you have a friend who can weld.
I think I'm gonna try this out! Thanks for the info! Good winter project for me!

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post #27 of 28 Old 10-13-2010, 06:13 PM
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No prob. I wasn't looking for super loud, so I left the stock opening. It came out just about right for what I wanted. If you do it and end up wishing it was louder, you can always use a hole saw to cut a larger hole in the end and insert some tips. I saw some exhaust parts at AutoZone that would've worked fine if I'd decided to go that route.

Oh, and in case you didn't read through the linked thread, if you cut the cans about a half inch behind that first tab, it won't matter what kind of weld job you do. The weld will be hidden behind the heat shield on one side and too far back to see from behind on the other side.

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post #28 of 28 Old 10-13-2010, 09:57 PM
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i suppose i'll weigh-in on this one too... i did the bafflectomy, and i LOVE it! sure, Sato's sound nice, but you also have to spend significantly more to acquire them.

bafflectomized 919 cans may have a lil bit of a tin-ish quality to its sound at idle, but once moving, it sounds fine. also, i'm usually wearing earplugs, so those high-frequency sounds are usually filtered out anyways, leaving a nice deep rumble...



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