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Thunderheader on 80"
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Joined: Mar 2011
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From: Right here..
Thunderheader on 80"
I have a chance to pick up a Thunderheader 2 into 1 in almost new condition for a good price ($200). I believe the motor is stock. CV carb w an S&S air cleaner. I have shorty dual drag pipes that came on the bike. Will I notice any difference in performance on a stock motor?
With the motor being stock and you have an S&S. What i would be checking is if your rear pipe is shorter than the front. If you ever decide to have performance work done on your motor, It's a lot easier to tune a bike that has the same length pipes. Thunderheader is a good set up and the two pipes go into one collector
Seasoned HDF Member
Joined: Aug 2008
Posts: 5,079
Likes: 2,151
From: Ohio
Thunderheader is the best sounding 2-1 and will help now and better later on if you get the "tweak it more" in your blood. Check it close for cracks, it's weakness is other brands 2-1's workmanship is a little tighter, good pipe and they will hear you coming.
Road Master
Joined: Mar 2006
Posts: 775
Likes: 2
From: OC California
$200 is a good price. Like 1997 says, check for cracks and the mounting bracket on the collector. I have been running one for a while and like it a lot. The headers do run hot so you will either need sheilds or wrap them.
Cruiser
Joined: Dec 2010
Posts: 110
Likes: 1
From: central NC
I really like it. I have seen 2 versions. One is for floorboards I think and the rear pipe goes straight down. On the other one the rear pipe swings forward and both pipes wrap around the ignition cone like Havoc's.
http://www.youtube.com/watch?v=Vf8eZTLHuMM
http://www.youtube.com/watch?v=Vf8eZTLHuMM
Last edited by topfuel7; Apr 6, 2011 at 07:53 PM.
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Tourer
Joined: Sep 2010
Posts: 471
Likes: 9
From: Far NorCal
I sold mine for $350 (1/2 price), so $200 is a very good price.
I like low-end torque, which it won't have after a few months old. They don't have much back pressure and burn-out too fast causing them to be too loud IMHO!
However, I got mine to work with a glass pack/baffle cut out of a hot rod glass-pack muffler, fit perfect and then it had torque and sounded better.
I sold it because I wanted true duals for that old "separate pulse" sound I missed. I know 2 into 1 is better for performance...hence X pipe, but I'm not racing, just like the old sound.
I now have real good low-end torque, love it!
I like low-end torque, which it won't have after a few months old. They don't have much back pressure and burn-out too fast causing them to be too loud IMHO!
However, I got mine to work with a glass pack/baffle cut out of a hot rod glass-pack muffler, fit perfect and then it had torque and sounded better.
I sold it because I wanted true duals for that old "separate pulse" sound I missed. I know 2 into 1 is better for performance...hence X pipe, but I'm not racing, just like the old sound.
I now have real good low-end torque, love it!