I think there's something wrong with my exhaust - MVAgusta.net
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post #1 of 22 (permalink) Old 04-25-2013, 03:33 PM Thread Starter
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I think there's something wrong with my exhaust

My F4 has an Arrow exhaust, I guess it's what they call "RG3". It has four tips like the OEM. The tip has a rounded edge, but I'm thinking that there should be an inner tube so the gas goes out straight. With my tips, it seems that where the metal "curls" there would be a lot of turbulence. Anyway, I'm not even sure that I'm explaining this right. Please look at the two attached pictures and tell me if it looks correct, or somebody did some kind of butcher job on it and took something out. Thanks.
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post #2 of 22 (permalink) Old 04-25-2013, 03:46 PM
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somebody removed the rear cone/perforated tube and the packing

if they are RG3s it will be stamped on it

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post #3 of 22 (permalink) Old 04-25-2013, 04:49 PM Thread Starter
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The two pipes on the inside have "Arrow" stamped on them. The outside pipes have "MV Agusta 90376" stamped. Should I do something about the cone, tube, and packing missing?
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post #4 of 22 (permalink) Old 04-25-2013, 04:54 PM
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It'll be fine Franco. The tips will get a little warm but other than that it's no biggie. The previous owner must have been going for the "un-silenced" sound. Just go with it.


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post #5 of 22 (permalink) Old 04-25-2013, 05:01 PM Thread Starter
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OK, thanks. One last question about the exhaust: see the picture attached. The disc has a little hole in it. Why the little hole?
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post #6 of 22 (permalink) Old 04-25-2013, 05:56 PM
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Franco;
here are some pictures;
http://www.mvagusta.net/forum/showth...ght=gazman+mod

search "Gazman mod" too

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post #7 of 22 (permalink) Old 04-25-2013, 08:57 PM Thread Starter
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I saw the Gazman mod thread. So if I were to drill more holes through that disc, and another one behind it, then the exhaust would be louder and less restrictive?
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post #8 of 22 (permalink) Old 04-25-2013, 09:37 PM
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Quote:
Originally Posted by Franco View Post
I saw the Gazman mod thread. So if I were to drill more holes through that disc, and another one behind it, then the exhaust would be louder and less restrictive?
yes

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post #9 of 22 (permalink) Old 04-28-2013, 02:28 PM
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Quote:
Originally Posted by Franco View Post
My F4 has an Arrow exhaust, I guess it's what they call "RG3". It has four tips like the OEM. The tip has a rounded edge, but I'm thinking that there should be an inner tube so the gas goes out straight. With my tips, it seems that where the metal "curls" there would be a lot of turbulence. Anyway, I'm not even sure that I'm explaining this right. Please look at the two attached pictures and tell me if it looks correct, or somebody did some kind of butcher job on it and took something out. Thanks.
These are the end tips that are missing.
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post #10 of 22 (permalink) Old 04-28-2013, 06:18 PM
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Franco;
Stephen Wood has your missing tip parts......i don't know how the sneaky little devil did it......but he has them



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