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[UltraV]

I have A 2011 cvo road glide ultra.  I've read about the heat issue with the catalytic converters and the many who like the Fulsac x pipes.  My question is, why not just remove the catalytic converter?  That shouldn't be too hard or cost much to do.  Then keep oem pipes/headers. 

[Dan_Lockwood]

I have A 2011 cvo road glide ultra.  I've read about the heat issue with the catalytic converters and the many who like the Fulsac x pipes.  My question is, why not just remove the catalytic converter?  That shouldn't be too hard or cost much to do.  Then keep oem pipes/headers. 

Do a search under Catalytic Converter Removal and you'll find tons of threads with lots of pictures to boot.

I have a '09 SERG and did the CAT removal on it myself.  Some very early on just tried to drill our one half with a deep hole saw, but that's not the best way to get the CAT out.  Fullsac will cut the header in two and then core it out and reweld it for you.  I used my Plasma Torch and cut a rectangular hole in the side of the collector area and then had to use my air chisel to remove the CAT.  This stuff is VERY tuff to remove, but the end results were worth the heat reduction.

I have the Fullsac 2" baffles with the TTS Mastertune wit Fullsac's 110" '09 map and it works great.

Even though the CAT is out, I can hear a slight difference between the left muffler and the right muffler in loudness.  The left is clearly quieter than the right as the header pipe when gutted is more of a straight path for the right / front cylinder then the left / rear cylinder.  Even though the exhaust gasses are free to mix and mingle all they want, the quickest exit is still the right pipe.  The "X" pipe from Fullsac and the other power pipe from other manufacturers tend to be a lot more equal in exhaust flow, not that it matters a whole bunch for pleasure riding.

Good luck with your CAT removal.

[Midnight Rider]

I have A 2011 cvo road glide ultra.  I've read about the heat issue with the catalytic converters and the many who like the Fulsac x pipes.  My question is, why not just remove the catalytic converter?  That shouldn't be too hard or cost much to do.  Then keep oem pipes/headers. 

The Fullsac X pipe is different in design than the stock header pipe.  As mentioned above, the point at which the two pipes come together to form the X is a lot different than what is happening in the collector when the cat is removed from the stock pipe.  In addition, the Fullsac pipe is coated, and it is a stepped header.  You get a little bit better HP/TQ with the X pipe...not a HUGE difference, but some difference.  Plus, it's just easier to do if you're doing it yourself...if you've got a welder, or a buddy that does, then gutting the stock pipe isn't a huge deal...but if you don't, it's more trouble than just taking one off and putting another on.

[mark]

"Fullsac will cut the header in two and then core it out and reweld it for you."

Once Fullsac started selling the X pipe, I believe they quit modifying stock headers.

[UltraV]

Even though the CAT is out, I can hear a slight difference between the left muffler and the right muffler in loudness.  The left is clearly quieter than the right as the header pipe when gutted is more of a straight path for the right / front cylinder then the left / rear cylinder.  Even though the exhaust gasses are free to mix and mingle all they want, the quickest exit is still the right pipe.  The "X" pipe from Fullsac and the other power pipe from other manufacturers tend to be a lot more equal in exhaust flow, not that it matters a whole bunch for pleasure riding.

Thanks.  That makes sense.  Two-into-one pipes are basically what the stock pipes are with a little cross over, and a true two-into-one is actually the most efficient setup for exhaust on these bikes.  Haven't decided whether to do the cat removal, X-Pipes or nothing at this point. Only had the bike a couple of months.  May wait until next summer and see if I want to get rid of the cat and consider options at that time. 

[Fullsac Performance]

"Fullsac will cut the header in two and then core it out and reweld it for you."

Once Fullsac started selling the X pipe, I believe they quit modifying stock headers.

Actually, we are back at it again. We have de-catted, ceramic coated, OEM headpipes on the shelf for 199.00 exchange.
We send you ours, you send yours back in our box.  Great option if the budget is tight and cooling things is the main priority.

Steve
Fullsac Performance

[Z man]

I wish I had known that last week.  Another forum thread talked about just purchasing the headers off a 2009 bagger that did not have a CAT and install it in place of the OEM pipe.  Now I learn after I bought it that the o2 sensors are in a different location from the ones on my 2010 Ultra and I spent $200 for them!

[Midnight Rider]

I wish I had known that last week.  Another forum thread talked about just purchasing the headers off a 2009 bagger that did not have a CAT and install it in place of the OEM pipe.  Now I learn after I bought it that the o2 sensors are in a different location from the ones on my 2010 Ultra and I spent $200 for them!

Save 'em...if you ever go to a tuning device that requires broad band O2 sensors, you'll need this pipe or something much like it.

[Z man]

I don't understand what you mean by that?  I have already installed stage 1 air cleaner and have a new map installed with a TTS Tuner.  I intended to use a new map with the x-pipe without the CAT.

[Midnight Rider]

I don't understand what you mean by that?  I have already installed stage 1 air cleaner and have a new map installed with a TTS Tuner.  I intended to use a new map with the x-pipe without the CAT.

The bung holes on the '09 pipe are a different size than the '10 and up, so they will accept wide band O2 sensors, as are required on tuning devices such as Rev Performance, Thundermax, and some others.  Since you already have the TTS, it's a mute point at this time.