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Questions about exhaust

Old 02-05-2011, 07:54 PM
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Questions about exhaust

I found these on EBAY and was wondering if anybody had any experience or knowledge of this type of can.

It should also be noted that im not trying to build a GP bike im just trying to make a decent bike to take to a few track days. In other words im coming from more of a bang for your buck angle
http://cgi.ebay.com/ebaymotors/Carbo...mZ160535448370
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Old 02-05-2011, 08:04 PM
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A general rule of buying things is... You get what you pay for.

I think these cans may have been discussed a month or so ago in another thread.

Se habla Chinese?

Last edited by VTRsurfer; 02-05-2011 at 08:07 PM.
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Old 02-05-2011, 08:19 PM
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Also, if you haven't heard it before, even the highest quality carbon cans don't last all that long on these bikes. So they "might" not last but I've never used them or know anyone that has.

Guess that makes you our guinea pig......

Let us know how they work.
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Old 02-05-2011, 08:57 PM
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Originally Posted by 8541Hawk View Post
Also, if you haven't heard it before, even the highest quality carbon cans don't last all that long on these bikes. So they "might" not last but I've never used them or know anyone that has.

Guess that makes you our guinea pig......

Let us know how they work.
Thats why I havent purchased them yet. Trying to find out if theyre gonna be any better than the stock cans i still have.

Why does carbon fiber not last long on these bikes. What is the preferred material on them
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Old 02-05-2011, 09:06 PM
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Carbon fiber is just that...fiber. It's constructed like fiberglass, a woven carbon mat is coated with resin. Heavy vibration, or an impact, can make it crack. Also very high heat will burn it.

I've heard of members who have had no problems with carbon fiber cans. But when I got mine I chose titanium, so as not to take a chance, since I ride over 12,000 miles per year since retiring.

Otherwise aluminum or stainless steel are good materials. Carbon fiber and titanium are the most expensive. That's why the low price for CF seems very questionable.
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Old 02-05-2011, 09:11 PM
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but I'm poor and run Aluminum cans......


As for the carbon cans, some folks have had good luck but I have seen a set of "name brand" carbon cans self destruct after a single season. It has to do with the large exhaust pulses flexing the can unlike an I4 which has a more constant pressure, so no flexing.

Last edited by 8541Hawk; 02-05-2011 at 09:16 PM.
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Old 02-05-2011, 09:13 PM
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Yeah, but I got my titanium cans courtesy of the insurance company of the 19 year old who rear ended me at a red light last March.
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Old 02-05-2011, 09:17 PM
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Now that's the way to do it
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Old 02-05-2011, 11:26 PM
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Those have been on ebay for a long time. I wonder if they've ever sold any. I shy'ed away.
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Old 02-06-2011, 08:48 AM
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Originally Posted by 8541Hawk View Post
but I'm poor and run Aluminum cans......


As for the carbon cans, some folks have had good luck but I have seen a set of "name brand" carbon cans self destruct after a single season. It has to do with the large exhaust pulses flexing the can unlike an I4 which has a more constant pressure, so no flexing.
Good point about the pulsing. This is the first v twin sportbike ive owned, all my others are I4s so i didnt even think about that.
Yeah unless i find a hell of a deal on some used titanium cans im starting to lean towards good ol aluminum
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Old 02-06-2011, 09:44 AM
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Welds look nice and they will save you weight. You hear a lot of detractors when it comes to carbon exhaust on our bikes, but after a quick search I couldn't find any specific posts concerning a set actually failing. (I have TBR carbon cans on my bike so fingers crossed.)For a track bike I would say go for it and report back with your experience. Or look out for a used set.
On a side note has anyone realized any actual (dyno results) gains from their slip ons.
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Old 02-06-2011, 12:00 PM
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Carbon cans fail when the packing blows out and the owner does nothing to maintain the units. Aluminum and titanium have the heat resistance to put up with this negligence.
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Old 02-06-2011, 12:36 PM
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Old 02-07-2011, 07:54 AM
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Originally Posted by bdyj View Post
Good info in that article.
I do wonder on the CF pipes if the CF is layed thicker on the name brand companys
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Old 02-07-2011, 08:17 AM
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Originally Posted by bdyj View Post
That's the titanium one's... A good bit different to the CF one's... Just saying...

Originally Posted by J Bragg View Post
Good info in that article.
I do wonder on the CF pipes if the CF is layed thicker on the name brand companys
Doubt it's much different... It's more important whats inside...

Many use a thin metal sleeve inside the CF, but not all... Then there is a lot of differences in what packing material is used, and if it will burn once hot enough...
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Old 03-28-2011, 05:55 PM
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DanMoto GP exhaust

For the price I decided to try'em out on my bike...

YouTube - SuperHawk w/ Danmoto GP style exhaust installed

So far I'm pretty pleased. If you order them don't forget the baffles, just in case you decide to run with them installed it is quite loud.

Last edited by stangy89; 03-28-2011 at 05:58 PM.
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Old 03-28-2011, 06:08 PM
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dang, they are tiny!
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Old 08-24-2011, 08:32 AM
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In looking at the actual DanMoto site, I believe you can request them to make the can longer.
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