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[guppytrash]

Stock cores don't really have diameter due to the fact that they are not straight thru exhaust. 

[Highjagger]

So the fullsac cores are wider than the stock-ones and straight open from  front to end , don`t you loose your back pressure then ?

[LarryB]

The fins that are cut into the cores cause turbulence, which cause the air/gas to slow to a controlled rate. this is calibrated by the number/ angle/ depth of cut on the fins.

[Highjagger]

Can I see this on a pic somewhere here ?
Or could somebody post a pic of those special looking fins ?
That would help me to understand ( perhaps ) 

[Texas 103]

 

[Iglide]

Greg,
What size cores did you install for this tune?

[Texas 103]

Greg,
What size cores did you install for this tune?

I went to the 2"

[Jbbrown73]

For the headpipe alone? No heat shields or clamps/brackets. etc? Holy crap!!! Drill away my friends!!! Or better yet, get the FatCat. Someone found them for just over $600!

Hoist!

I placed an order with www.hdpipes.com for a fatcat quiet baffle for $610 plus $25 shipping.  I swapped some email with the guy before I ordered and made sure he had them in stock and they were new, not blems or 2nds.  So, I will let you know when I get it.

[Jbbrown73]

Yep ..Friends are a good thing, For anyone that wants to do this, simply find a good muffler shop in your area, preferably one that does custom work, good street rod builder, custom bike builder etc;someone that has done some fab work  simply cut the back of the pipe as close as you can to the weld  with a bandsaw, so you will get a nice clean cut and  when it's welded back they will use part of that weld to weld over. We will be using a " MIG" welder to weld it back. Then use a chisel to go along the outside of the cat to break it loose from the can, then split it down the middle and start pulling chit out. A 'Zip Gun" AKA "Air Chisel" works super for this...  I just wasn't in the mood to wait for a '96 Pipe to show up...I think they call that IMPATIENCE......I want to see what it would do now....Greg

No muffler shop in IL will touch anything that has to do with cat removal on an auto, probably same for a bike.

[1abastarsmda]

WEll..... The results are in....and the winner is..... about 1.5  to 2.0 more HP , torque about the same, 

This was compared to a partially removed cc or stock with the entire cc still in there?

[Texas 103]

 

[Spazz]

I just called V&H. The power duals are a 2 into1 into 2 like the H-D set up without a c/c and they are out very shortly if not now already. I think this is the way i am going to go along with monters ovals. I don't have to remove pipes,remove baffles, install baffles, remove c/c and then instal pipes. I have to get out my credit card, set it and forget it. No mess, fuss, dents, scratches, mistakes, bad back, new tools and wife asking me when i'm done because dinner is ready. I don't see the point in buying a cvo and then trying to cheap out or cheat on the pipes to save $1,000.00 more or less. I trust V&H as that is what i had on my RK. the finish to great and they sound like V&H. I also like the fit as i know they are designed for the 2009 without compromise. Unless someone can tell me that other than a few dollars and keeping the stock pipes look I think this is the best way to go. How many H-D's have stock pipes anyway?

[1abastarsmda]

I may even consider the V&H power duals at some point, but I will say this.  I did the Fullsac replacment (2.25") and the pipes on my last bike were V&H (long shot true duals on a Road King), and I like the sound of the Fullsac's much better.  Don't get me wrong...the V&H sounded great, but these Fullsac's are a much deeper sound and not annoying loud like the V&H were.  I had fully figured that I would not like the Fullsac's and would end up with a full V&H system, and I had several friends tell me that I was wasting time and money recoring my mufflers.  It's now unaminous that I and my several friends all like the sound of the Fullsac's much better.  Yes, I do like the looks of the stock mufflers better than what V&H has to offer, so I am more than happy to spend less money and end up with something that I like better.  Again, I may go with the Power Duals at some point, but first I'd like to wait and see what type of performance results people are getting out of them.  If it's nothing more, then I will probably pick up a cheap or free set of pipes off a 96" motor, rather than cutting mine apart to remove the rest of the cc.  I'm going to keep my credit card in my wallet until such time that I know a bit more about what route I actually want to take.  It's winter in these parts, so time is on my side right now.

[Spazz]

lets not talk winter, i'm here in Toronto where we have 2 seasons, winter and contruction. BTW, an honest answer please. Exactly how much money did you spend including shipping, tools,etc... and how long did it take? If you want to comare apples to apples then only compare that to slip-ons and not full systems.

[grit]

Although not asked ... I'm butting in here , I installed the 2" fullsac's for less than $130.00 total. Time? Probably less than 3 hours! That's removing, grinding, inserting, bolting and putting everything back back on. Seriously, it was enjoyable time spent and I retain the looks of the stock 4" mufflers with greatly improved sound. I'm still waiting to do the "96" headers which I'll most likely "hotjet" (coating) with my savings.