Jason, I have one of these on my '03'. Have been riding with it since Oct. This muffler is sold under a couple different names, but VooDoo is the big purveyor of it. First thing I will tell you is, it is not a straight up fit. The whole thing does not align very well and if you look at pictures and videos a lot of folks don't attach it to anything beyond the header. That is not a good idea. You can finagle everything to get it to bolt to mounting bracket but it is not positioned very well.
Thanks a lot.. im stering on your picture, you got those blue/yellow/brown on your pipes.  I got an Leovince K02 siivertail system on the bike I bougt! It was loud, and a lot of backfire. In any case I put on the original last exhauste loud damper, and ride it last summer.
I got the original damper anużhow, I can put it on anytime, but the Leovince K2 silvertail slip on supose to fit on and dont need any carburator adjusments.

I will start by saying that the fast, quick fit up position, the turn out is basically perpendicular to the bike, hence a turn out. There are 2 things. One it doesn't look all that great and second it has some position issues.

I am the first guy to promote the concept of "Ride Safe, Ride Loud", and the thing is loud. But, if just installed as out of the box, it has a couple issues. First it makes the bike sound kind of like an obnoxious  lawn mower. Second, that sound is emphasised because it is being broadcast out at 90 degrees. So you are in effect projeting it out from the side of the bike.

How to address the sound and fit issues gets a little complicated. First it works better if you convert the mounting to a 3/4 turn down. Now you are not projecting the sound out to the side but rather down towards the road. Second you need to add a baffle or 2 to deepen and make the sound a little richer. When you install it and hear it on your bike it does not sound like it does in the you tube videos, phone camera's do not really capture good sound for things like this.

So now you are at the situation where the thing does not just fit up with a bolt holding it onto the bracket, or maybe nothing more then mounted to the header. So what do you do to make it a safe and complete install.

Well you need to get a connector between the header and it and you need to fabricate a mounting bracket/plate to attach it to the bracket on the bike. I did it by buying some exhaust pipe and having a muffler shop bend and expand it on the header end and I fabricated a stainless mounting plate to attach it to the bracket on the bike. To get the sound right I installed small baffles in it, one at the end of the connector to the header and another in the rear of the muffler.

With the sound right now I have still not figured the carb adjustments necessary to control the back fire it has created due to increased flow and reduced back pressure. The second catalytic baffle at end helped.

They are inexpensive so give it a try and if you are happy with sound, just bolt it up and ride. Mufflers really do need some shock mounting though and there is really not a way to effectively do that out of the box with what is provided. I will add the chrome one I installed began to blue imediately. Some could be attributed to the placement of a diversion baffle right in the front end of it.

I do have all the parts needed to do a mount like mine, I fabricated extras as I was doing it, as I have not only an '03' but a 2011 also. I will post pictures of the parts fabbed.
 

So now you have it on

Jason, I have one of these on my '03'. Have been riding with it since Oct. This muffler is sold under a couple different names, but VooDoo is the big purveyor of it. First thing I will tell you is, it is not a straight up fit. The whole thing does not align very well and if you look at pictures and videos a lot of folks don't attach it to anything beyond the header. That is not a good idea. You can finagle everything to get it to bolt to mounting bracket but it is not positioned very well.

I will start by saying that the fast, quick fit up position, the turn out is basically perpendicular to the bike, hence a turn out. There are 2 things. One it doesn't look all that great and second it has some position issues.

I am the first guy to promote the concept of "Ride Safe, Ride Loud", and the thing is loud. But, if just installed as out of the box, it has a couple issues. First it makes the bike sound kind of like an obnoxious  lawn mower. Second, that sound is emphasised because it is being broadcast out at 90 degrees. So you are in effect projeting it out from the side of the bike.

How to address the sound and fit issues gets a little complicated. First it works better if you convert the mounting to a 3/4 turn down. Now you are not projecting the sound out to the side but rather down towards the road. Second you need to add a baffle or 2 to deepen and make the sound a little richer. When you install it and hear it on your bike it does not sound like it does in the you tube videos, phone camera's do not really capture good sound for things like this.

So now you are at the situation where the thing does not just fit up with a bolt holding it onto the bracket, or maybe nothing more then mounted to the header. So what do you do to make it a safe and complete install.

Well you need to get a connector between the header and it and you need to fabricate a mounting bracket/plate to attach it to the bracket on the bike. I did it by buying some exhaust pipe and having a muffler shop bend and expand it on the header end and I fabricated a stainless mounting plate to attach it to the bracket on the bike. To get the sound right I installed small baffles in it, one at the end of the connector to the header and another in the rear of the muffler.

With the sound right now I have still not figured the carb adjustments necessary to control the back fire it has created due to increased flow and reduced back pressure. The second catalytic baffle at end helped.

They are inexpensive so give it a try and if you are happy with sound, just bolt it up and ride. Mufflers really do need some shock mounting though and there is really not a way to effectively do that out of the box with what is provided. I will add the chrome one I installed began to blue imediately. Some could be attributed to the placement of a diversion baffle right in the front end of it.

I do have all the parts needed to do a mount like mine, I fabricated extras as I was doing it, as I have not only an '03' but a 2011 also. I will post pictures of the parts fabbed.
 

So now you have it on

There are clearly 2 cases where nothing but a loud pipe saved case 1. Someone from me, and case 2 me from someone.

Case 1. 20012-13. I am about to turn left in my car, its near about dark, when I look left and see a jeep with high beams on far far away. But I am hearing a loud twin cyl sound. I look to my right. Nothing. Look back left and the far away Jeep was a Harley with twin headlights and really close. And no high beams. He was just close. No loud pipe he'd be down and likely pretty badly hurt.
Case 2. 2018. I am riding down a frontage road. There's a temporary road sign that's 3' high and 3X the size of a normal sign, but I see a car at the stop sign waiting to turn left, but I am going too fast to stop. The car is a bit tentative in turning - likely he heard me, but the highway to my left was likely making him less able to pinpoint it. He moves 1/2 way in and slams the brakes and I see a look that says oh that was what the sound was. Ever since I hate those temporary stupid short and huge road signs. Nothing but sound saved me and someone from me.

Cool.
Srinath.