Ok I couldn't remember if they were 2" inlets or 1-7/8" on the Rineharts. So long as you know what you're getting into it's all good. Good luck.

One tidbit I'll share on the Rinehart headers...keep a check on the brace that attaches to the starter on the left header. The nut will vibrate off and leave the header hanging on its own and it will eventually crack right by the O2 port. Been there.

 

 

so your saying that the true duals don't perform? Any data? I could have bought any exhaust I wanted but my indy/dyno guy told me to buy whatever I like because after 3k rpm the true duals make up any thing their giving up off idle...I live at 3k and up so they work for me. Just curious because all I ever see is guys bashing duals but nothing to substantiate it.

 

 

I believe this is the second time on this website that I've seen you going on about this. If what you say IS true, a whole lot of TQ being missed in the range (1800-3000 RPM). Go over to HTT and view the dynos of exhaust changes. I'll agree that on a stage 1 motor, it's not as important. Start changing cams, adding compression, etc and the difference becomes exponential.

Soooooooo.........feel free to stick your head in the sand or do your own research. I won't spoon feed you.

 

If you make reducers and install regular slip on's, you will be negating the advantage of having stepped header true duals like Rineharts. Your duals as they are now will perform almost as well as a 2-1-2 headerl. You might want to rethink this if your doing any engine upgrades. I don't know if it's possible but you might want to contact Rinehart and see if you can buy a set of 4" mufflers for their true dual headers. 4" mufflers tend to have a deeper sound. I have Rinehart true duals on an 06 with 4" mufflers and they sound good to me but that's an objective opinion.

 

I just installed a set of Cobra Neighbor Hater mufflers on my 2018 Road King with the new 107 engine and I am very impressed. They are half the cost of Reinhart's and sound just as good. I listened to several videos online before making the purchase. If you look through the Neighbor Hater mufflers you can see straight through them without any restriction. The factory mufflers weren't like this. It feels like my bike has at least 20-30% more power and I didn't have to change the head pipe or add a fuel programmer. Their chrome is excellent. I purchased from Revzilla after they price matched Amazon.com. The price for a set was $323.00 which includes free shipping and NO tax.

 

I know that with my setup, stock 96ci, Cobra 909 Twins slip-ons, Cobra True Duals, Arlen Ness Big Sucker and PC-V, mine dynoed at:
72.94 Max Power
88.76 Max Torque

I really like the Cobra products so good luck with whichever you choose.

 

 

I found this video on the SVT Boneshakers.....www.youtube.com/watch?v=2oIfLKlIHis

Viewing that SVT Boneshaker video I saw some rivets in the end of those mufflers which were exposed which I didn't like....something you don't see on Cobra Neighbor Hater.