2 into 1 Exhaust for Fatboy
Thread Starter
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Tourer
Joined: Jan 2018
Posts: 384
Likes: 145
From: Hamlin, NY
2 into 1 Exhaust for Fatboy
Hey guys. Wondering if changing out the stock exhaust on a 2008 Fatboy to a 2 into 1 system is a "slip-on" setup or does it require a complete exhaust swap (head pipes)?
Would it require tuning afterwards?
Buddy wants hard bags that wont fit with stock exhaust. He is not particular to 2 into 1 but figured that would be the only route he could go to get the clearance for bags.
Any suggestions would be appreciated.
Thanks.
Would it require tuning afterwards?
Buddy wants hard bags that wont fit with stock exhaust. He is not particular to 2 into 1 but figured that would be the only route he could go to get the clearance for bags.
Any suggestions would be appreciated.
Thanks.
Stellar HDF Member
Joined: Nov 2004
Posts: 3,156
Likes: 41
From: So Cal
You have to get a complete new exhaust system it cant be done with different slipons.
V&H , Cobra, Thunder header, Sampson,and others all make them. if your doing it because you need to fit bags be sure the new system is below the axal, some of the 2-1 are still high and you cant get larger bags on especially a hard bag conversion
V&H , Cobra, Thunder header, Sampson,and others all make them. if your doing it because you need to fit bags be sure the new system is below the axal, some of the 2-1 are still high and you cant get larger bags on especially a hard bag conversion
Stellar HDF Member
Joined: Nov 2004
Posts: 3,156
Likes: 41
From: So Cal
i like the V & H Pro Pipe, they make good usable Tq on all the bikes I seen then on and they sound great.
Cruiser
Joined: Apr 2019
Posts: 127
Likes: 42
From: Utrecht, Netherlands
I have the V&H Pro pipe on my 2002 Fatboy. What exhaust do you have on now and do you have a better A/C? If you already have that and a free flowing exhaust you could get away without a tune but your engine might not like it and you are probably not getting full effect of your mods. I suggest you at least do a test run after installation and make sure they check air/fuel ration and performance in the cruising range too, WOT is not the only thing that matters as some seems to think.
Thread Starter
|
Tourer
Joined: Jan 2018
Posts: 384
Likes: 145
From: Hamlin, NY
I have the V&H Pro pipe on my 2002 Fatboy. What exhaust do you have on now and do you have a better A/C? If you already have that and a free flowing exhaust you could get away without a tune but your engine might not like it and you are probably not getting full effect of your mods. I suggest you at least do a test run after installation and make sure they check air/fuel ration and performance in the cruising range too, WOT is not the only thing that matters as some seems to think.
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Cruiser
Joined: Apr 2019
Posts: 127
Likes: 42
From: Utrecht, Netherlands
I think he should get an A/C to actually take advantage of the exhaust. If you open outlet you also needs to open intake, otherwise that will be a bottleneck. Exhaust will not do that much if more air are anyway not going in the engine. I would say you need a tune with 99% certainty or the bike will run very lean and probably damage the engine in the long run (if you do both A/C and exhaust). At least thats what I've learned.
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Cruiser
Joined: Apr 2019
Posts: 127
Likes: 42
From: Utrecht, Netherlands
Must be alot of used A/C and exhaust in the US? Even here in the Netherlands I find second hand Harley part very easily for decent prices. I can probably get a used 2-1 and A/C for 300-400. Dunno about the price for dyno tune in the states, guess it varies quite some depending on where you are and go. Good luck!