Mufflers
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Stage II
Joined: Jun 2004
Posts: 2
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From: United States
Mufflers
I have a new2004 FXSTI. I let someone talk me into cutting out the baffles and I didn't like the sound, so I have decided to wait and buy some proper aftermarket pipes. In the mean time I wanted to go backto stock, so I bought what was advertised as FXST stock mufflers from E-bay. They look like they will fit ok, however they say they are for an XL883 or 1200, and they are about an inch shorter than the ones on the 2004. Will the XL mufflers be too restrictive to use until I get the pipes I want (Probably next Spring)? Does anyone know if these (XL Mufflers) were also used on 2000-2003 FXSTI?</P>
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Grand HDF Member
Joined: Sep 2004
Posts: 3,685
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RE: Mufflers
While I can't answer your question directly, I would be real careful... If you have too much or too little back pressure, you could be in for some real problems. I would contact your local HD dealer for fitment verification...
JMO,
Ryan
JMO,
Ryan
Stage IV
Joined: Oct 2004
Posts: 4
Likes: 0
RE: Mufflers
I'm sure most harley owners like a nice loud rumble under them ( I love my pipes ) but there is more to it than just cutting out baffles. You'll get the sound, and lose power unless your carbs are tuned for it.
The sound is good, but for the sake of your engines longevity, and performance...do it right. Theres many pipes to choose from...some even have baffles, and don't sound like it. If you take away the back pressure, you take away low-end torque...it's that simple. You can re-jet to make it run ok, but you still lose a bit of low end power. I use the old method of putting a small washer on the end of a bolt, and mount it inside the end of my drag pipes...the restriction can be adjusted by turning the bolt, it works like a butterfly valve. This method, if done right, wont effect the sound of drag pipes much, but it'll give you back the torque thats lost from drag pipes. The biggest plus is, when the DMV inspector looks in there...he sees what looks like the end of a baffle haha!
The sound is good, but for the sake of your engines longevity, and performance...do it right. Theres many pipes to choose from...some even have baffles, and don't sound like it. If you take away the back pressure, you take away low-end torque...it's that simple. You can re-jet to make it run ok, but you still lose a bit of low end power. I use the old method of putting a small washer on the end of a bolt, and mount it inside the end of my drag pipes...the restriction can be adjusted by turning the bolt, it works like a butterfly valve. This method, if done right, wont effect the sound of drag pipes much, but it'll give you back the torque thats lost from drag pipes. The biggest plus is, when the DMV inspector looks in there...he sees what looks like the end of a baffle haha!
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