Thunder Header Technology
Thunder Header Technology
O.k. riddle me this Batman, Been riding H.D.s for over 3-decades and a re-occuring debate keeps arising. Thunderheaders 2-inito one has an extremely devote following (I think due to Sonny Barger). What makes Thunderheader more superior than it's competers i.e. Vance & Hines, Caliber, Sampson, etc. What technology did Thunderheader possibly do differently technology speaking? Basically physics dictates to me that metal pipes welded together with baffleing couldn't be that different. [>:]
[IMG]local://upfiles/59720/BFFF1DAEECB74DCA96974D6E2E295C52.jpg[/IMG]
[IMG]local://upfiles/59720/BFFF1DAEECB74DCA96974D6E2E295C52.jpg[/IMG]
Stellar HDF Member
Joined: May 2005
Posts: 2,137
Likes: 17
From:
RE: Thunder Header Technology
People like Thunderheaders because they are LOUD. They are the closest thing to a 2 into 1 drag pipe. They have no competitive advantage except, maybe, in a quarter mile drag race.
Ultimate HDF Member
Joined: Mar 2008
Posts: 5,040
Likes: 3
From: Nice home on the NorCal Coast
RE: Thunder Header Technology
I think MP summed it up fairly well, it's the sound more than a performance edge over other 2 into 1's.
Thunderheader does make pretty good power if you can tune out the torque dip in the lower rpm range and I think but I'm not sure, they were the first to really advertise the "anti reversion" technology. When I put a 2 into 1 on my RK I went with the Pro Pipe and was very happy with the power it made with my build but couldn't get past the looks, to me a bagger just doesn't look right missing one side. Anyway, I put a set of Thunderhead slip-ons but grew tried of them being so damn loud. Have Samson silver bullets on it now and thinking about going with true duals. Thought about going with the Full Sac but from what I've read in mags and heard from folks in the know, they're more for looksand pretty much a waste of money if your looking forperformance gainsbecause of the lack of crossover pipe. Probably go with Vance and Hines if I do change but still kicking it around.
Keep it safe,
Krusr
Thunderheader does make pretty good power if you can tune out the torque dip in the lower rpm range and I think but I'm not sure, they were the first to really advertise the "anti reversion" technology. When I put a 2 into 1 on my RK I went with the Pro Pipe and was very happy with the power it made with my build but couldn't get past the looks, to me a bagger just doesn't look right missing one side. Anyway, I put a set of Thunderhead slip-ons but grew tried of them being so damn loud. Have Samson silver bullets on it now and thinking about going with true duals. Thought about going with the Full Sac but from what I've read in mags and heard from folks in the know, they're more for looksand pretty much a waste of money if your looking forperformance gainsbecause of the lack of crossover pipe. Probably go with Vance and Hines if I do change but still kicking it around.
Keep it safe,
Krusr
RE: Thunder Header Technology
Thanks for the response boy's, the sound was my impression too. Thunderheader fans seem to be under the opinion that that pipe gives them the best possible performance also and for the life of me I just couldn't understand how the configuration of pipe & baffles wouldn't have been duplicated by other suppliers if that was the case. I'm currently using Sampson rolled thunders because they were given to me. Free is always the best in my opinion. However I would like to get more HP out of my bagger.
[IMG]local://upfiles/59720/4B849A8BFE434EC481F6FC2A81562236.jpg[/IMG]
[IMG]local://upfiles/59720/4B849A8BFE434EC481F6FC2A81562236.jpg[/IMG]
Stellar HDF Member
Joined: Jan 2007
Posts: 2,626
Likes: 1,347
From:
RE: Thunder Header Technology
Having run TH exhausts on several bikes I can tell you that they work! A collector 2 into 1 is the way to get power out of twin. The scavenging effect of one exhaust pulse helps the other and that effect would be terrible to waste! There are mixed views on the anti-reversionary cone but I can see in theory how it works and it makes sense. TH is not the only exhaust that works int his way - just the one that i like based upon past experience, fit, finish, price and reputation.
Are they loud? Yes.
Is there some low rpm flat spots? Yes.
Do they offer good performance for most types of street riding? Absolutely.
I am in no way connected with TH except as a customer.
Are they loud? Yes.
Is there some low rpm flat spots? Yes.
Do they offer good performance for most types of street riding? Absolutely.
I am in no way connected with TH except as a customer.
Tourer
Joined: Feb 2008
Posts: 269
Likes: 0
From: PA
RE: Thunder Header Technology
It all comes down to choice, I've had a thunderheader on my Fatty for about 5 years,personally it has a geat sound, it has a nice deep tone and when you crack the throttle it really wakes up,and I'm very impressed with it's performance I would definately use one again, latr
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