Danmoto!
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Joined: Dec 2014
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From: SWFL
I wonder how much more power or torque any of those bikes would make with a better exhaust. Just because something works, doesn't make it ideal. Isn't it Steve C's sig that says "the best you've had is the best you've known, but not necessarily the best"?
But I do agree, if you like the looks of that pipe then go for it.
But I do agree, if you like the looks of that pipe then go for it.
Last edited by Mchad; Jan 19, 2020 at 11:42 AM.
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Seasoned HDF Member
Joined: Feb 2009
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From: Cleveland Zoo
The Pro Pipe would probably be as long as the bottom muffler on a FXLRS.
Last edited by OldMike; Jan 19, 2020 at 02:01 PM.
Stellar HDF Member
Joined: Feb 2017
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From: East Flanders - Belgium
I will offer three data points for keeping the stock Fat Bob header in place, if you don't want to change the bike's appearance:
1) S&S shows pretty much identical power gains for their Grand National mufflers on the stock headpipe, as they do for their SuperStreet full 2-1 system.
2) In another thread I pointed out a 124" Low Rider built for the Battle of the Kings, that chose to use the stock Fat Bob headpipe and some Rinehart slip-ons. They say it easily runs 10.5-second quarter miles.
3) Steve Cole showed a Fat Bob Stage IV build where the customer insisted on keeping the stock headpipe and Street Cannons. It was a 117 build, all Harley parts but a TTS cam and tune, I think the numbers were in the ballpark of 125 HP and 130 TQ, don't remember exactly but it was in that neighborhood. And the torque curve was exquisite. Those numbers are comparable to Harley's claims for their new 128" Stage IV motor.
So between all those, it sure looks to me like if you don't want to ruin the Fat Bob's looks to get some performance, you don't have to.
1) S&S shows pretty much identical power gains for their Grand National mufflers on the stock headpipe, as they do for their SuperStreet full 2-1 system.
2) In another thread I pointed out a 124" Low Rider built for the Battle of the Kings, that chose to use the stock Fat Bob headpipe and some Rinehart slip-ons. They say it easily runs 10.5-second quarter miles.
3) Steve Cole showed a Fat Bob Stage IV build where the customer insisted on keeping the stock headpipe and Street Cannons. It was a 117 build, all Harley parts but a TTS cam and tune, I think the numbers were in the ballpark of 125 HP and 130 TQ, don't remember exactly but it was in that neighborhood. And the torque curve was exquisite. Those numbers are comparable to Harley's claims for their new 128" Stage IV motor.
So between all those, it sure looks to me like if you don't want to ruin the Fat Bob's looks to get some performance, you don't have to.
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Seasoned HDF Member
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From: Cleveland Zoo
I'm guessing the Pro Pipe ships with a standard baffle since I saw the quiet baffle as an option to purchase.
HDF Community Team
Joined: Sep 2013
Posts: 2,351
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From: Wisconsin
Yes, you have to buy the quiet baffle as an option.
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