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Sportster Motorcycle General Discussion and Problems For discussing problems about your Sportster motorcycle that don't fit anywhere else.

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  #1  
Old 13th February 2006
Cooper Cooper is offline
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Default 2006 Exhaust Changes

Did the Moco do something different to the exhaust of the 06 Sportsters? I noticed in the catalog that the mufflers are listed as having a converter.(?)Would this change sound/power issues? Just curious.
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Old 13th February 2006
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i believe the california+international models have cat cons for 06,not the rest.yet..
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  #3  
Old 13th February 2006
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One of the biggest changes in the UK is that you cannot get Screamin Eagle mufflers/exhausts at all through the Harley dealers not even the Harley scripted street legal mufflers p/n 80415-04 (if I remember correctly). The dealers are now fitting aftermarket pipes - typically Vance and Hines - to all new bikes if customers want to upgrade from stock pipes.
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  #4  
Old 13th February 2006
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My '06 had a cat. conv. in the front muffler. I found this out when attempting gronk's muffler mod. So, finding that, paying taxes just happened a little quicker.
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  #5  
Old 17th February 2006
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How am I supposed to know if my 06 has a cat converter? I'm wanting to do the baffle mod, but how will I tell if I just want to punch the baffles?
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Old 17th February 2006
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Quote:
Originally Posted by Kajun
How am I supposed to know if my 06 has a cat converter? I'm wanting to do the baffle mod, but how will I tell if I just want to punch the baffles?
Have you asked the dealer? I'd start there.
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Old 17th February 2006
RedRider RedRider is offline
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The muffler will have "catalyst" printed on it somewhere on the side.
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  #8  
Old 17th February 2006
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OK, well I had already punched the baffles. I did notice that the last "plate" on the front pipe's baffle was a lot tougher to penetrate. In fact, I know I didn't go all the way through it. What damage might this cause to the engine or anything else? I'm hoping to get new pipes eventually, but I might have to wait a while. Sooooooo, how bad did I screw up?
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Old 17th February 2006
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Drilling through a cat won't harm the motor. But it will likely ruin any chance that your exhaust emissions will meet EPA standards, present and future. (but screw the EPA, they wouldn't approve of my 2 inch drag pipes either)
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Old 17th February 2006
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Is the cat welded to the muffler on the end that meets the header pipe, or is it connected to the baffle itself and deep inside the slip-on? I figure that since I've already punched the baffles, I might as well just try gronk's mod, or maybe even experiment with taking the baffles out completely just for the heck of it. Will the cat come out fairly easy or is it in there for good to where I'd have to drill it out little by little. I'd take a look at it but I'll be at work all day...

I plan on getting another set of stock 06 slip-ons with the cat eventually so I can get back to EPA approval when necessary, so I'd like to finish opening these stockers up since I've already gone past the point of no return...
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