2into1 side dump exhaust - Road Glide Forums
Intake and Exhaust Intake and Exhaust Systems for Road Glides

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post #1 of 11 (permalink) Old 06-24-2019, 10:08 PM Thread Starter
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2into1 side dump exhaust

Question for those that have it... Are the 2into1 side dump exhausts systems worth it for actual power or are they just mainly for looks and sound? I like the way they look but I don't want to sacrifice any power. I did a 124" motor this winter and don't want to waste the money on a side 2into1 dump set up if it will rob power. Any info would be appreciated

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post #2 of 11 (permalink) Old 06-24-2019, 11:05 PM
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Curious also and also curious how long it takes to get your hearing back after a long ride.
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post #3 of 11 (permalink) Old 06-25-2019, 12:06 AM Thread Starter
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Curious also and also curious how long it takes to get your hearing back after a long ride.
I was looking at the Freedom Performance 2into1 turnout exhaust and it says the end cap can be rotated so I'd imagine aiming towards the ground a little so it might not be so bad. My main concern is whether or not it would be worth it power wise

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post #4 of 11 (permalink) Old 06-25-2019, 12:13 AM
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Originally Posted by eddienelson View Post
Curious also and also curious how long it takes to get your hearing back after a long ride.
I was looking at the Freedom Performance 2into1 turnout exhaust and it says the end cap can be rotated so I'd imagine aiming towards the ground a little so it might not be so bad. My main concern is whether or not it would be worth it power wise
I’ll pm you the number to one of Freedoms reps. I’m running their union 2/1 but I don’t know anything about their shorty. I’m super happy with my Freedom Union. I wouldn’t hesitate to purchase it again.
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post #5 of 11 (permalink) Old 06-30-2019, 09:04 AM
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Haven't run one myself but have seen several dyno charts of some of the various short side dump pipes on another forum. They all seem to have a noticeable low end dip.

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post #6 of 11 (permalink) Old 09-20-2019, 09:46 PM Thread Starter
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I know this is a few month old thread but I didnt want to start another one with an update.

I wound up buying the freedom performance union 2into1 full length exhaust shortly after I originally made this thread. Long story short, the box was delivered damaged so I contacted ups. I opened the box and wasn't pleased with quality of it. The billet end cap which was slant cut to match the saddlebag angle didn't appear to fit correctly and they weren't the same angle. I didnt install it because with the box being damaged from shipping I didnt want to chance me losing my ability to return it in case anything was damaged due to the shipping.

Fast forward to this past sunday. I ordered the D&D Boarzilla 2into1 with the slant cut muffler and the perforated baffle which is the loudest baffle. It came yesterday and I installed it this morning. The quality of everything is great. It came with everything including new exhaust gaskets which are different than the normal gasket. The D&D gaskets are a metal crush style as the head pipe has a slightly longer lip that actually sits inside the exhaust port. It was a little bit of a pain lining up the flanges because of the way they sit in the exhaust port but it wasn't too bad. Once those are lined up and in place everything else was straight forward. I got everything done and wiped down before I fired it up. All I can say is wow! It is definitely loud with the perforated baffle. It sounds great and seems to be much more responsive. I wound up talking to the Thundermax tech support back when I ordered the other exhaust because I was running a generic xpipe and they told me to let it autotune itself for the 2into1 pipe. I took it for a ride and it is a noticable difference in performance. I am very pleased with the D&D Boarzilla and I will say that it was worth the extra couple hundy.

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Last edited by rlaf75; 09-20-2019 at 09:48 PM.
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post #7 of 11 (permalink) Old 09-20-2019, 10:30 PM
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D&D makes a great exhaust. Glad your happy with it. The FatCat and Drago2 was the only 2 exhaust I looked at when I did my build, only a small 106. My tuner said I couldn't choose wrong with either of those
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post #8 of 11 (permalink) Old 09-21-2019, 12:53 AM Thread Starter
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D&D makes a great exhaust. Glad your happy with it. The FatCat and Drago2 was the only 2 exhaust I looked at when I did my build, only a small 106. My tuner said I couldn't choose wrong with either of those
I did look at both of those pipes too. I wound up going with the Boarzilla because of the slightly larger stepped pipe diameter for larger displacement motors. honestly I don't think any of these pipes mentioned would be a bad choice

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post #9 of 11 (permalink) Old 09-21-2019, 08:18 AM
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I am glad you found something you are happy with. I do have a question though. With all that extra power on tap, would a 4 or 5 hp loss from a side exit really make that much difference while riding? I think they look killer but understand that 125hp isnt near as impressive as 130 on paper.
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post #10 of 11 (permalink) Old 09-21-2019, 09:27 AM
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you would never know 125 diff with 130 , nobody runs their motor at that level all the time anyways ..

sure its making it at 5000 or so , but where the motor lives at , it's far from it ...

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