ST Supermeg or Cycle Shacks
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Cruiser
Joined: Jun 2018
Posts: 121
Likes: 53
From: western ma
ST Supermeg or Cycle Shacks
I've got two exhaust systems available to me for my 2000 Fatboy. One is a Supertrapp Supermeg and the other is factory headpipes with a balance pipe and Cycle Shack tapered slip on mufflers. Anyone ever compare the two as far as power/torque? How does the balance pipe compare to a 2-1 system? The bike is a 95" TC with Andrews 37B cams, Hillside stage 2 heads, !0:1 c/r. and a CV carb.
Seasoned HDF Member
Joined: Dec 2005
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From: poway
Being carbed you should be able to figure out which feels better to you without going to the dyno. Try them both.. You need an adjustable ignition. Personally like the looks and sound of staggered duals on a softail.
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Cruiser
Joined: Jun 2018
Posts: 121
Likes: 53
From: western ma
I don't have both on hand, but both are available. I was leaning towards the staggered duals, hoping the balance pipe would help make the two systems close in performance. I'm not a big fan of Supertrapps' sound, but if there's a big difference in 2k - 5k power I'd put up with it. Yes, I have a Daytona Twin Tec TC-88 on the way.
Seasoned HDF Member
Joined: Mar 2010
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From: Poolville
If you're going to try to squeeze every pound of torque and every horsepower then go with the two on one because there's no way those other ones will outperform the super trap..
And you really don't know how much you're going to lose between the two pipes.. I doubt you'll be able to tell by seat of pants. A Dyno tune would make a huge difference because the super traps need to be tuned (end plates and cap).. Could be anywhere from 2 to 5 lb of torque as well as 2 to 5 horsepower.. definitely 4 to 5 horsepower up top..
And you really don't know how much you're going to lose between the two pipes.. I doubt you'll be able to tell by seat of pants. A Dyno tune would make a huge difference because the super traps need to be tuned (end plates and cap).. Could be anywhere from 2 to 5 lb of torque as well as 2 to 5 horsepower.. definitely 4 to 5 horsepower up top..
Last edited by 98hotrodfatboy; Jun 30, 2022 at 03:50 PM.
Road Captain
Joined: Jun 2014
Posts: 699
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From: Batcave
Both options are good options.
Factory headers with cross over usually work pretty well. A good quality and flowing tapered slip-on muffler like what youre proposing also work very well. This is a very under-stated and under rated performance option that has the benefit of looking stock which avoids unwanted attention at times.
I think youd be happy with either option.
Factory headers with cross over usually work pretty well. A good quality and flowing tapered slip-on muffler like what youre proposing also work very well. This is a very under-stated and under rated performance option that has the benefit of looking stock which avoids unwanted attention at times.
I think youd be happy with either option.
Grand HDF Member
Joined: Sep 2017
Posts: 4,359
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From: Dubuque, IA
If you're going to try to squeeze every pound of torque and every horsepower then go with the two on one because there's no way those other ones will outperform the super trap..
And you really don't know how much you're going to lose between the two pipes.. I doubt you'll be able to tell by seat of pants. A Dyno tune would make a huge difference because the super traps need to be tuned (end plates and cap).. Could be anywhere from 2 to 5 lb of torque as well as 2 to 5 horsepower.. definitely 4 to 5 horsepower up top..
And you really don't know how much you're going to lose between the two pipes.. I doubt you'll be able to tell by seat of pants. A Dyno tune would make a huge difference because the super traps need to be tuned (end plates and cap).. Could be anywhere from 2 to 5 lb of torque as well as 2 to 5 horsepower.. definitely 4 to 5 horsepower up top..
The same TDs were actually tested against the ST on a 98" build and spanked it too.
People seriously underestimate the performance of a good pair of slip ons on the stock head pipes/crossover of these bikes tho. You had a great setup with your bike when you bought it with the Rush slip ons and totally dismissed them. I'd bet $$$ those would've gave that ST you shelled out for a serious run for the money. Would've looked better and sounded waayyy better too.
The cycleshacks have the same torque curve but slightly less than the Rush slip ons.
I've still got my Rush setup here and been thinking of throwing it on and seeing how well it does compared to the Pro Streets.
No way I'd put a 2in1 on a Softail. Especially that one. No offense.
Btw, the same Rush slip ons did 130hp on a Hammer 1250 build. The tapered cycleshacks will do a little less hp than the slash cuts.
Last edited by 60Gunner; Jul 9, 2022 at 03:51 PM.
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Road Warrior
Joined: Mar 2013
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From: Alorton, Illinois
I would pick the 2-1. Get it dyno tuned to my combination and never look back. Form follows function and sound doesn't equal power.
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Grand HDF Member
Joined: Sep 2017
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From: Dubuque, IA
Not quite warmed up and idling a little high. Otherwise it's got a real nice cammed out idle. Shitty audio but...
Last edited by 60Gunner; Jul 14, 2022 at 10:29 PM.
Grand HDF Member
Joined: Sep 2017
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From: Dubuque, IA
The biggest issue I look for in an exhaust is reversion because most pipes experience it to some extent and it can kill a build in a hurry. Now the Supertrapp is tunable which is nice. At least if there's any reversion you SHOULD be able to tune the pipe to perform where you want/need it to perform it's best.
But the CycleShacks, like the Rush, don't push back anywhere. Now this is from a Sporty 1250 build but they're the exact same mufflers used on the twin cams.
You really can't go wrong either way here. Just a matter of preference as to the type of exhaust you want to run. With the CycleShacks vs the Supertrapp, you'll most likely get a bit more top end hp with the Supertrapp tho. The Rush would be a little tighter race.
These are also with a 1.75" baffle vs. a 2" commonly used on the twin cams. Hrdtail can tell you anything you want to know about tuning the Supertrapp if you go that route.
As you can see tho, the CycleShacks do have a nice torque curve.
.
But the CycleShacks, like the Rush, don't push back anywhere. Now this is from a Sporty 1250 build but they're the exact same mufflers used on the twin cams.
You really can't go wrong either way here. Just a matter of preference as to the type of exhaust you want to run. With the CycleShacks vs the Supertrapp, you'll most likely get a bit more top end hp with the Supertrapp tho. The Rush would be a little tighter race.
These are also with a 1.75" baffle vs. a 2" commonly used on the twin cams. Hrdtail can tell you anything you want to know about tuning the Supertrapp if you go that route.
As you can see tho, the CycleShacks do have a nice torque curve.
.
Last edited by 60Gunner; Jul 16, 2022 at 09:43 AM.