Single Under Tail Exhaust - Wrist Twisters
 
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post #1 of 13 Old 03-17-2012, 11:30 PM Thread Starter
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Single Under Tail Exhaust

My friend is looking at trying to get a custom under tail like the 2006 cbr600rr exhaust that come directly under the taillight. I know there is a member that has done that but I cannot find the thread, or who the member is.

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post #2 of 13 Old 03-18-2012, 06:22 PM
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2004 Honda CBR1000RR: MD Track Test MotorcycleDaily.com – Motorcycle News, Editorials, Product Reviews and Bike Reviews
Looking at these pics, I cant see why it cant be done. I'm sure someone here knows all the details about a 1krr undertail exhaust. Pipe diameter and bend angles to go around the rear shock. You would have to fab up a heat shield and mounting bracket.
I for one wou love to see it done.

Do it!


Do it!


Do it!








Do it!

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post #3 of 13 Old 03-18-2012, 06:36 PM
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shouldnt be that hard.... you already have the y-pipe going around the rear shock. simply redirect it back together under the tail and volia, undertail exhaust.

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post #4 of 13 Old 03-18-2012, 06:57 PM
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I can get my hands on an exhaust from a 2005 cbr1000rr repsol.
I may have to look at it for you.

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post #5 of 13 Old 03-19-2012, 12:39 AM
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Piece of piss to do I'd say. Make a joiner pipe from the Y connector to the new muffler - you will be able to use both the 919 muffler mounts to hold the new muffler. Your main considerations should be:

1. rear wheel clearance

2. heat transfer to the upper under-tail where your bikes computer is sitting! You will need to get a really good insulation material between the top of the muffler and under tail. I am pretty sure I saw a suitable product on Dennis Kirk a while back.

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post #6 of 13 Old 03-19-2012, 09:59 AM
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Quote:
Originally Posted by AllanB View Post
Piece of piss to do I'd say. Make a joiner pipe from the Y connector to the new muffler - you will be able to use both the 919 muffler mounts to hold the new muffler. Your main considerations should be:

1. rear wheel clearance

2. heat transfer to the upper under-tail where your bikes computer is sitting! You will need to get a really good insulation material between the top of the muffler and under tail. I am pretty sure I saw a suitable product on Dennis Kirk a while back.
While you're at it, drill a couple of 'coolant' spacer holes in the tail right around that area.

Maybe a couple more holes for some mounting brackets for that insulation material.

And a couple more holes just because you'll want them there for increase airflow through the ECU.



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post #7 of 13 Old 03-19-2012, 11:29 AM Thread Starter
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Quote:
Originally Posted by g00gl3it View Post
While you're at it, drill a couple of 'coolant' spacer holes in the tail right around that area.

Maybe a couple more holes for some mounting brackets for that insulation material.

And a couple more holes just because you'll want them there for increase airflow through the ECU.


Oh I will do just that lol. It's my buddy's bike that would be getting the transformation. I was thinking to help make more clearance would be to move the computer like Bueller did when he did that smooth undertail mod. I think this would help solve the computer heat problem as well as make the exhaust hug closer and giving a flat surface to put some insulation on as well.

Heres the link to that thread https://www.wristtwisters.com/forums/...mod-28112.html

2003 Honda Shadow 750 ACE (Sold)
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post #8 of 13 Old 04-06-2012, 09:41 AM
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good luck, piece of piss.
if you got access to fabricating shop.
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post #9 of 13 Old 04-06-2012, 11:28 AM Thread Starter
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Quote:
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good luck, piece of piss.
if you got access to fabricating shop.
I'd venture to say that one of the major factors is placement and size of can that will determine how hard it is to fab up? I was thinking of using the Dan Moto that I'm getting to help him mock it up, the other PITA is getting the pipe bent just right so it all fits nicely.

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post #10 of 13 Old 04-06-2012, 12:38 PM
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my goal was to keep the bike looking as OEM as possible.
alot of rear frame needs to be cut off, or you will have a custom.

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post #11 of 13 Old 04-09-2012, 02:43 PM
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post #12 of 13 Old 04-09-2012, 02:49 PM
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basically the guy chopped of his original tail end off the 599, and replaced with a tail from a CBR600RR.

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post #13 of 13 Old 04-09-2012, 02:50 PM
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