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Changing my pipes

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Old Jul 5, 2012 | 11:41 AM
  #1  
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Default Changing my pipes

I own a 09 FATBOB and i am thinking about purchasing slip on mufflers, do i need to retune the EFI? I've heard it is pretty easy to change exiting mufflers. Getting mixed messages.
Any suggestions for mufflers with real harley sound?
 
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Old Jul 5, 2012 | 03:03 PM
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If you're just putting slip on's, you don't need a re-tune. If you do high flow air cleaner and slip on's, you'd probably be fine without a retune, but I did because I wanted the POWA! Just make sure you're not running too hot if you don't re-tune.
 
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Old Jul 5, 2012 | 03:28 PM
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Dont do it my bike came with V&H slip ons and I hate them! way too quiet for my liking. I plan on getting a full exhaust just cant decide on what to get.
 
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Old Jul 5, 2012 | 03:42 PM
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I have V&H slip ons and I think they were PLENTY loud enough. Even with quiet baffles. Runs fine without a tuner. Easy install.
 
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Old Jul 5, 2012 | 03:53 PM
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Rush slip-ons with 1.75" baffles and love the sound. Deep burble at idle (no harsh or tinny like others I have heard). Barks a bit louder when hard on the throttle. No re-tune and runs fine.
I may get full exhaust down the road but I have more important things I'm upgrading now that the sound is good and "Harley like"
 
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Old Jul 5, 2012 | 04:03 PM
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I put v&h slip ons and like the sound . I didn't buy a fuel management system until I put a big sucker filter on. I looked around and got prices from my local tuner which everyone says is great and something you need to do. I couldn't really afford it. I went with a Vance and Hines fuel pack and couldn't be happier. The bike runs much better and cooler. I don't plan to do anything but stage one and I think that is the key...good luck
 
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Old Jul 5, 2012 | 04:47 PM
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Simple to put on mufflers. I did my FatBob not long ago and it took half an hour tops. I didn't even have to loosen the heat shield. Put some sort of penetrating oil on the joints a couple hours before you do the switch or you will have a lot of frustration getting the old ones off!
 
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Old Jul 5, 2012 | 05:19 PM
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A few days after I got my street bob back in 2010 I found a guy on Craigslist selling "Screamin' Eagle II's" for $100 so I picked those up. I have loved the sound of them over the years. Hopefully switching up to v&h big radius soon. Iv been running the slip ons for over 2 years with no tuner you'll be fine.
 

Last edited by Neenjah; Jul 5, 2012 at 05:23 PM.
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Old Jul 5, 2012 | 05:45 PM
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get the full exhaust now, really not that much difference in price.

Rush slip ons were 350 and V & H propipe is 479. You'll get better performance and get rid of the cat. It will run cooler too
 
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Old Jul 23, 2012 | 01:39 PM
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Default Back to the original questions............

You will not need to re-map with just the exhaust change as said before.

But if you do install a fuel management system, be prepared for a loss in fuel economy.
 
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