F4 Exhaust mod - MVAgusta.net
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post #1 of 8 (permalink) Old 04-15-2019, 07:50 PM Thread Starter
JSM
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F4 Exhaust mod

Here is a short clip of the F4 with an exhaust mod, no cat and modified internals !

Skrecov and paulo. like this.


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post #2 of 8 (permalink) Old 04-15-2019, 10:39 PM
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Like the sound. Not that back pressure pop though (or whatever you call it).

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post #3 of 8 (permalink) Old 04-16-2019, 12:45 AM
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Can you get away with that in Victoria? No chance up here in Queensland.

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post #4 of 8 (permalink) Old 04-16-2019, 11:17 PM Thread Starter
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Quote:
Originally Posted by revhead1957 View Post
Can you get away with that in Victoria? No chance up here in Queensland.
Havent put it to the test !!!!


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post #5 of 8 (permalink) Old 06-09-2019, 11:36 PM
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Love the sound! Are the insides of the silencer gutted? I've been thinking about pulling mine apart to get that amazing sound. Any chance you could share with me what you did to the modified internals?

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post #6 of 8 (permalink) Old 06-11-2019, 06:41 PM Thread Starter
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Z, I dont have a pic of the internals however you basically cut open the muffler (following the original welds) from the inside edge of the muffler "tips" (mine are painted black) to approx half way down your muffler. Inside there is a "baffle" wall with two by round outlets; this needs to be removed (cut out) and you can then get access to the inside of the exhaust tips where further breathing holes can be made. Will try and take an internal picture and post up for you!


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post #7 of 8 (permalink) Old 06-11-2019, 06:58 PM
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Sounds lovely. I personally like the pop on decel.

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post #8 of 8 (permalink) Old 06-25-2019, 01:01 PM
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Thanks JSM. Any pics you can share would be fantastic!

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