So I've decided that this is my next mod. I honestly don't mind the look of my stock pipes and I do not have the money to throw into a new exhaust. I have watched the youtube video on how to remove the baffles. My question is what size Thunder Torque Inserets do I need for my 2013 XL883N with Stock Exhaust. 1.5", 2", and 3" Inserts are available.
Does anyone have any information on this or has done it to their sportster? Any info helps, thanks!

 

Most likely you will need the 118w for your bike, but just to be on the safe side you would need to measure the inside diameter of your pipes. Then you would know for sure what size.

Merry Christmas
Kelsey

 

I have already done this and I used the 158's. I think, I am at work but I will check when I get home. I have since put on a full exhaust, mainly because I wanted all black. I am willing to get rid of mine that way someone would already have a set cut and could go back to stock if needed. Once you cut/gut these there is no easy way back.

 

I have a question about the TT inserts...
I have a 2 into 1 system, but not currently on the bike. I don't like the way it runs with it. The motor response is "soft" until about 3000rpm. Then it "Turns on." It's like there is a hole in power curve. It even gets louder when it comes on.

The fuel mileage also isn't as good as when the 2 into 2 system is on. Maybe 2mpg less than the 2 into 2 pipes.

It's a stock 883, and the primary header tube size is 1 3/4, then merges into a 2" collector. Would a TT insert help that?

 

I'm not too shure on the tapered type mufflers , but I used a 1 3/4" hole saw to remove my stock baffles.
The 1 3/4" hole is just big enough to pull the whole baffle assembly out the rear.
Some might like it this way just with the baffles removed.
In a pinch , you can just size up (expand) the baffle end and slide it back in and tack weld just 2 spots and it will hold fine.
Here's where I got the idea.
http://xlforum.net/vbportal/forums/s...ad.php?t=16948
With a little massaging , you can undo it if needed.
Mick

 

Hi Mike,

Yes, we have had a lot of good results in using the TTI's on 2-1 exhaust systems. I know exactly what you mean about the soft spot. Most aftermarket exhaust systems have it to some degree, some much more than others. (it is caused by the exhaust pulse changing directions and heading back to the cylinders, where it collides with the exhaust gasses, resulting in a less than optimum cylinder fill)

With a 2-1 exhaust you will need only 1 insert, and it should be placed between .5" and 3" from the end of the pipe where the exhaust is exiting into the atmosphere.

The TTI will get rid of most, or all, of the flat, or soft, spot, and the bike will get better MPG also.

 

Thanks Kevin. I believe I'll give those a shot!

 

Cool, looking forward to hearing how you like them!

 

Decided to quit procrastinating today and purchased the W118's for my 2013 Sportster XL883N. I can't wait to do this mod and hear my "new" stock exhaust!

 

Got the Torque Inserts in the mail the other day, didn't think they would arrive so fast. Just at first glance, they look to be too small. Some of the Youtube videos that I have seen show a decent sized insert that nearly seals the entire muffler. But because of the more open area Ill have around the Insert, I should get a louder sound too. I'm hoping to get a little more torque and a deeper sound out of this. I will update once I finish the mod.