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spurliner
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« on: October 29, 2021, 08:08:17 PM » |
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Can anyone tell me how long the end section of the muffler is on a 1999 interstate ? ….and is it a 4” pipe?
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1999 Interstate--
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Jess from VA
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« Reply #1 on: October 29, 2021, 09:01:05 PM » |
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I think 18", but the interstate (IS) may be a tad longer than the others. I know my IS replacement stacks were 18".
4" ID.
That 18" section is not the muffler.
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spurliner
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« Reply #2 on: October 29, 2021, 10:46:14 PM » |
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Okay thank you.
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1999 Interstate--
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h13man
Member
Posts: 1745
To everything there is an exception.
Indiana NW Central Flatlands
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« Reply #3 on: October 30, 2021, 06:29:38 AM » |
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ID is 100mm/3.937 thus 4" 18 gauge exhaust pipe fits very good from my experience at making my own tips. https://imgur.com/8uUMaIN |
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spurliner
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« Reply #4 on: October 30, 2021, 08:43:20 AM » |
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Ya great. That’s what I’m looking for. Thanks.
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1999 Interstate--
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spurliner
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« Reply #5 on: October 30, 2021, 08:51:27 AM » |
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Ya great. That’s what I’m looking for. Thanks.
I was thinking about cutting my old Harley mufflers and using them. |
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1999 Interstate--
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Jess from VA
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« Reply #6 on: October 30, 2021, 08:54:42 AM » |
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Just remember, If you want longer ones, they tend to drag leaving and departing aprons, especially at an angle. And backing down on tall curbs can be troublesome too. Also with turnouts.
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spurliner
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« Reply #7 on: October 30, 2021, 10:26:38 AM » |
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Yes I get that.
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1999 Interstate--
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gordonv
Member
Posts: 5760
VRCC # 31419
Richmond BC
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« Reply #8 on: November 05, 2021, 07:47:27 PM » |
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These are the muffler sections, with the piggies (tubes) cut off.  This is with the 4" truck stack on the muffler.  There are a little longer than the stock tips. I forget the length, but it should either be in my project post, or somewhere in my receipts/text doc for the Valkyrie. |
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1999 Black with custom paint IS   |
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spurliner
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« Reply #9 on: November 05, 2021, 09:41:56 PM » |
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Great pics. Thanks.
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1999 Interstate--
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indybobm
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« Reply #10 on: November 06, 2021, 06:26:54 AM » |
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These are the muffler sections, with the piggies (tubes) cut off. This is with the 4" truck stack on the muffler. There are a little longer than the stock tips. I forget the length, but it should either be in my project post, or somewhere in my receipts/text doc for the Valkyrie. i hope that is not another exhaust on the other side of the table  |
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So many roads, so little time
VRCC # 5258
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Bagger John - #3785
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« Reply #11 on: November 06, 2021, 07:28:34 AM » |
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Ya great. That’s what I’m looking for. Thanks.
I was thinking about cutting my old Harley mufflers and using them. Fish pipes are the ONLY way to go.  |
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h13man
Member
Posts: 1745
To everything there is an exception.
Indiana NW Central Flatlands
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« Reply #12 on: November 06, 2021, 07:58:32 AM » |
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With the pictures that "gordnov" posted, the 100mm fit area is where the small hole is showing on the end of the stock unit.
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gordonv
Member
Posts: 5760
VRCC # 31419
Richmond BC
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« Reply #13 on: November 06, 2021, 09:28:30 AM » |
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Before painting them with heat paint, I ran a 4" grinder up/down the muffler, since I felt it was a very tight fit. I placed the stack outside in the sun to heat it up and have it expand a little.
But even with that, it was a real pain trying to force them down over the muffler. I took the pointed end, and slammed it into a wood block to force it on. It bent a little, but straightened out ok.
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1999 Black with custom paint IS |
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