thunder header?
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Joined: Apr 2009
Posts: 67
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From: upstate ny
thunder header?
did a 103 stage iv on a 09 street glide, have a hundred miles on it, considering ordering a thunder header for it?? getting it on before the dyno tune. How loud are they any pos or negatives to this pipe i would love some insight???
Road Master
Joined: Jan 2008
Posts: 853
Likes: 5
From: Mnpls MN
Very loud.
They work very well for power gains.
I've heard different stories about weld issues. The stories are not verified though. I've just heard stories.
They are ugly unless you buy all the chrome covers.
They are pricey in comparison to a Fat Cat, which delivers all of the above, accept for the ugly, because they come with the chrome already strapped on from the factory.
They work very well for power gains.
I've heard different stories about weld issues. The stories are not verified though. I've just heard stories.
They are ugly unless you buy all the chrome covers.
They are pricey in comparison to a Fat Cat, which delivers all of the above, accept for the ugly, because they come with the chrome already strapped on from the factory.
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Joined: Jan 2008
Posts: 51
Likes: 0
From: Michigan
i have thunderheaders slipons with vance an hines true duals there isnt a pipe that gives you the sound of one of those there loud i will admit imho if you want a bike to sound like a harley then get the thunderheader its a real head tuner i run those on a 2006 street glide with a big bore
Ultimate HDF Member
Joined: Nov 2008
Posts: 6,682
Likes: 12
I have one on my 09 stage 1 96" RKC and to me, for sound there is nothing that sounds better. They are also supposed to be top notch for performance. To me, their weak spot is the chrome. I don't have any cracks or peeling but it just doesn't have as deep of a chrome look as the rest of the chrome on my bike.
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Grand HDF Member
Joined: Sep 2009
Posts: 3,806
Likes: 281
From: Green Country Oklahoma
Loud sounding and reasonable power producer but make sure to buy heat shield for slipons discolor very easily .Don't agree for calling ugly I think these are unique product like noting else. But the loudness does get old when you go 2-3K mile trip used em about 3 years then moved to V&H Monster Ovals with TD headers.
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Cruiser
Joined: Oct 2008
Posts: 129
Likes: 0
From: Central Virginia
I don't know if you can, but here they are on an '01 Fatboy. Pretty loud pipes...
http://www.youtube.com/user/tmyers24.../0/mSdipOd0n5U
http://www.youtube.com/user/tmyers24.../0/mSdipOd0n5U
Cruiser
Joined: Dec 2008
Posts: 236
Likes: 0
I have the slipons with vance and hines headers and couldn't be happier. I went through numerous sets of exhaust and thousands of dollars chasing the sound and finally have it. Yes, they are loud but one of the best sounding exhaust on the market. As for performance, like was said earlier, these really come alive in the midrange which works for me because that is usually where I keep my rpms.