Modifications - Performance Discuss aftermarket and DIY performance modifications

Exhaust shortening/how to.

Thread Tools
 
Search this Thread
 
Old Mar 25, 2012 | 05:51 AM
  #1  
dshakes's Avatar
Thread Starter
Senior Member
Superstock
 
Joined: Apr 2009
Posts: 395
From: Columbus, OH
dshakes is on a distinguished road
Exhaust shortening/how to.

Exhaust shortening/how to.-img_0721.jpg
First I drilled out the rivets.
Exhaust shortening/how to.-img_0722.jpg
This is what it looks like after the rivets are removed.
Exhaust shortening/how to.-img_0723.jpg
This is what you get when you pull it all apart.
Exhaust shortening/how to.-img_0725.jpg
I then drilled out the Devil plate so it can be moved.
Exhaust shortening/how to.-img_0724.jpg
I used the metal cutting wheel to lightly score the steel wool material as i found that the easiest way to cut it back and remove it.

Last edited by Wolverine; Apr 9, 2012 at 10:35 AM.
Old Mar 25, 2012 | 06:04 AM
  #2  
dshakes's Avatar
Thread Starter
Senior Member
Superstock
 
Joined: Apr 2009
Posts: 395
From: Columbus, OH
dshakes is on a distinguished road
Exhaust how to/ part 2

Exhaust shortening/how to.-img_0727.jpg
A hose clamp makes a great guide thanks to a forum members suggestion for cutting. Cut off 6 1/2 inches.
Exhaust shortening/how to.-img_0728.jpg
So this is the actual cutting. Metal cutting wheel in a grinder.
Exhaust shortening/how to.-img_0729.jpg
This is the removed material.
Exhaust shortening/how to.-img_0730.jpg
This is actually the end result. Stainless steel rivets hold it all together.
Exhaust shortening/how to.-img_0726.jpg
This is the finished product and the new placement for the devil logo plate.

Last edited by Wolverine; Apr 9, 2012 at 10:39 AM.
Old Apr 9, 2012 | 10:41 AM
  #3  
Wolverine's Avatar
Moderator
MotoGP
 
Joined: Jul 2007
Posts: 5,221
From: Gettysburg, Pa
Wolverine is on a distinguished road
Did I get the order right D?
Thanks for doing this write up. I plan to do this to my D&D's in the near future. Do you wish you would have taken off less (is it too loud)?
Old Apr 9, 2012 | 12:03 PM
  #4  
smokinjoe73's Avatar
Senior Member
MotoGP
 
Joined: Jul 2007
Posts: 5,066
From: NYC
smokinjoe73 is on a distinguished road
A forum member? I want my credit for the hose clamp tip!
Old Apr 9, 2012 | 04:20 PM
  #5  
Wolverine's Avatar
Moderator
MotoGP
 
Joined: Jul 2007
Posts: 5,221
From: Gettysburg, Pa
Wolverine is on a distinguished road
I hearby officially give smokinjoe credit for the hose clamp tip!!
Old Apr 9, 2012 | 06:09 PM
  #6  
smokinjoe73's Avatar
Senior Member
MotoGP
 
Joined: Jul 2007
Posts: 5,066
From: NYC
smokinjoe73 is on a distinguished road
Uh oh, is this gonna come back to haunt me somehow?
Old Apr 9, 2012 | 07:11 PM
  #7  
dshakes's Avatar
Thread Starter
Senior Member
Superstock
 
Joined: Apr 2009
Posts: 395
From: Columbus, OH
dshakes is on a distinguished road
Sorry smokinjoe!! Credit given for the clamp idea lol. Couldn't remember at the drop of a hat who gave me the idea. 97wolverine, the order is great. Thanks man. I thought of taking off a bit less but decided to just go for it. It is loud I will say that but I love the deep loud tone. I'm happy with it. But everyone is different and we all know that opinions fly freely on the forum haha!
Old Apr 11, 2012 | 10:04 AM
  #8  
ur_averagejoe4's Avatar
Junior Member
Squid
 
Joined: May 2011
Posts: 28
From: Springfield, OH
ur_averagejoe4 is on a distinguished road
I was thinking about doing that to my RT-1s. Was performance affected any? How much louder was it? Would you recommend keeping any of the baffle once the pipes are shortened?
Old Apr 11, 2012 | 02:55 PM
  #9  
dshakes's Avatar
Thread Starter
Senior Member
Superstock
 
Joined: Apr 2009
Posts: 395
From: Columbus, OH
dshakes is on a distinguished road
Averagejoe, when I switched from stock to the devil cans I shimmed the carbs and that whole mess so when the devils got shortened I didn't notice any loss or gain of any kind. I'm not much of a technical guy like some of the members but decreasing backpressure can make her a little bitchy(carb farts) but if it's fine with the RT-1s then you shouldn't notice a difference. In terms of sound she makes harley riders cry lol. The Hawk screams with the shortened Devil cans but I love it very loud. Bottom line, it will be considerably louder. As for the baffle, on the devil cans the baffle and the end cap are one piece. So the baffle had to go back in. I would recommend putting it back regardless. I just had to shorten mine so it would slide back into the opposite end cap where the exhaust pipe connects. See picture 3 to see the baffle and end cap. Hope that all helps and makes sense.
Old Apr 18, 2012 | 10:11 AM
  #10  
GTS's Avatar
GTS
Seasoned tech
SuperSport
 
Joined: Apr 2012
Posts: 576
From: Issaquah, WA
GTS is on a distinguished road
The VTR I just got had been down on the right side and the guy had leaned it up against a pole on the left so both cans are messed up. I read this thread and LOVE the idea of just cutting a section of the can off to get rid of the scraped up parts! Thanks for the idea!!
Old Jun 8, 2012 | 07:13 PM
  #11  
Wolverine's Avatar
Moderator
MotoGP
 
Joined: Jul 2007
Posts: 5,221
From: Gettysburg, Pa
Wolverine is on a distinguished road
Not trying to jack, just adding to the info

Started w/
Name:  DSC05422.jpg
Views: 383
Size:  65.5 KB
Name:  DSC05420.jpg
Views: 388
Size:  38.3 KB

Drill out rivets and w/ much persuasion
Name:  DSC05423.jpg
Views: 366
Size:  51.7 KB
and I have to give credit where credit is due...smokinjoe, thanks for the clamp tip!

I used a hand held hack saw
Name:  DSC05424.jpg
Views: 418
Size:  39.3 KB
Name:  DSC05425.jpg
Views: 450
Size:  42.1 KB

Then I had to start sanding off clamp marks. 3M wet paper, 200-400-800-1k
Name:  DSC05430.jpg
Views: 404
Size:  53.5 KB
Name:  DSC05428.jpg
Views: 367
Size:  92.4 KB
Name:  DSC05426.jpg
Views: 365
Size:  129.7 KB
Name:  DSC05427.jpg
Views: 405
Size:  106.7 KB

Hand sanding complete, I set up my drill and made a shroud
Name:  DSC05432.jpg
Views: 408
Size:  111.7 KB

And bling bling
Name:  DSC05434.jpg
Views: 362
Size:  41.9 KB
Can still see some pitting but I'm ok w/ what I got
Name:  DSC05435.jpg
Views: 420
Size:  140.5 KB
Name:  DSC05436.jpg
Views: 368
Size:  74.9 KB


Subtle but I really like the looks!
Name:  DSC05438.jpg
Views: 371
Size:  103.3 KB
Name:  DSC05439.jpg
Views: 369
Size:  111.0 KB
Name:  DSC05440.jpg
Views: 398
Size:  103.9 KB

Can't wait to go for a ride tomorrow!!
Old Jun 8, 2012 | 11:29 PM
  #12  
GTS's Avatar
GTS
Seasoned tech
SuperSport
 
Joined: Apr 2012
Posts: 576
From: Issaquah, WA
GTS is on a distinguished road
You guys notice that cutting the mufflers short makes them any louder or not?
Old Jun 9, 2012 | 03:22 AM
  #13  
Wolverine's Avatar
Moderator
MotoGP
 
Joined: Jul 2007
Posts: 5,221
From: Gettysburg, Pa
Wolverine is on a distinguished road
Yes.
Old Jun 10, 2012 | 06:16 PM
  #14  
dshakes's Avatar
Thread Starter
Senior Member
Superstock
 
Joined: Apr 2009
Posts: 395
From: Columbus, OH
dshakes is on a distinguished road
Quite a bit louder
Old Jun 10, 2012 | 06:19 PM
  #15  
dshakes's Avatar
Thread Starter
Senior Member
Superstock
 
Joined: Apr 2009
Posts: 395
From: Columbus, OH
dshakes is on a distinguished road
97wolverine. Nice job man. Looks good and clean!
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Bluesuperhawk83
Technical Discussion
10
Aug 1, 2012 03:56 PM
Just_Nick
Modifications - Performance
5
Jun 24, 2010 08:52 PM
Rollin20z
Modifications - Performance
8
Dec 25, 2008 07:34 PM
HisHawkiness
General Discussion
5
Apr 5, 2008 12:04 PM
SlowHAWK
General Discussion
13
Oct 28, 2007 08:33 PM




All times are GMT -7. The time now is 12:32 PM.


Top

© 2026 MH Sub I, LLC dba Internet Brands



When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.