I've been shopping for some Exhaust options for my M8 and torn between something like S&S MK45 slip-ons and a DandD 2 into 1. I assume the 2 into 1 would for sure require tuning. I like to keep it simple. Also do the M8s work well with 2 into 1 like the Twin Cam's did?
PHX

 

The RCX slip on 4.5 has a very deep rumble and is a great looking pipe. The pipe is epa compliant and tuned to match the bike if you don't change the header. I looked at a lot of slip ons imho this is the best. Deep classy sound and no mods required.

 

Zoom is steering you in the right direction. My good friend has them on a 2016 Limited with the cat removed and they sound awesome and it tuned great on the dyno. Made 93.5hp and 115tq stock with only a Roland Sands breather and tuned at J&B Performance with a Power Vision tuner.

 

To be honest a lot of the M8 slip on's sound very similar at idle and being reved slightly in neutral. I have V&H elliminators. My friend has the S&S MK45's and I have heard the RCX and Rienhart at a local dealer demo. The Reinharts were the only ones that sounded a little different. They sound like reinharts of old but they are all deep and not overly loud.

 

Fuel Moto! Great rumble, great quality.

 

Check out the new D&D 2-1 for the M8.

 

and aren't they like $350..seems like there's been a lot of positive feedback on those

 

the key is to lose the cat. most of these mufflers will sound similar with stock headers. I would say get a muffler that have removable baffles. This will allow you to test a few difference scenarios. I personally like the V&H. Two bolts and baffles come right out. With the 400 Eliminators I was able to remove the baffles completely (too loud) as well as easily modify them to get the deep low rumble I was looking for. Simple 10min job. Sound got much better (loping sound) when I swapped to catless headers and stage II.

 

I put the S&S MK45's on my M8 and like them alot. After 3000 miles, they do break in and sound deeper now and have a nice bark when you twist it. The other thing I like about the S&S MK-45, they are Jet-Hot coated (ceramic based) and not just painted. Also have the removable baffles as well.

 

I really like my Tab Performance BAM sticks with Zombie baffles (removable and they have 3 different types of baffles for them).

I ran Freedom Performance slipons with a Fullsac header on my 15 RGS and it was much deeper than the Tab's but the Tab's have more of a hot rod sound to them. I don't know how to describe it any other way. I'm just really happy with them