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post #1 of 28 (permalink) Old 09-20-2018, 02:22 AM Thread Starter
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Rhinehart Mufflers for 2018 Road Glide Special

Hi Guys, new to the forum and first Road Glide. I'd be interested to hear what people think about 4" Rhinehart slip on mufflers, haven't heard them in person but they've been recommended to me. Anyone sporting them? Happy with the sound?
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post #2 of 28 (permalink) Old 09-20-2018, 08:48 AM
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My salesman at my dealer has a set of Rhineharts paired to Vance and Hines headers that sound real good. He said they were very tame until the header switch and that woke them up. Obviously the stock cat muffles quite a bit of the sound.
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post #3 of 28 (permalink) Old 09-20-2018, 09:53 AM
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Welcome to the tank from north Florida!

Tough thing about exhaust is to find the right setup without the luxury of being able to hear the complete system in person. Good luck with your search.
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post #4 of 28 (permalink) Old 09-20-2018, 09:56 AM
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99% of the slip ons for the M8 with the CAT in will sound the same......I am on my 3rd set chasing a sound that I'll never find - I run the stock header with CAT in on my '17 RGS.......I had CVO Slip Ons with the FullSac Cores, V&H 4.5 Inch Pros and now run Reinfart 450 MotoPros........not a fuck of a lot of difference IMHO - The V&H had a Great 'Race" sound if that makes sense and the Reinfarts are very DEEP sounding.......but at idle and "rev up" they all sound the same to my old def ass.......its not until you get them under load and on the beans that you can hear a difference.

With that being said, I hear okay things about Cobra Neighbor Haters and BAM Sticks with the Zombie Baffle having a tad more sound at idle.....but also hear that the sounds gets worse as the revs and gears climb.....who knows as I don't run either can.

In the end, you'll never have a Carbed Porn Music sound of the old Evo and back motors and you'll never have the growl of the Twin Cam 103s.......the M8 is just designed differently with a much more "EPA Friendly" sound - Just my cent and a half

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post #5 of 28 (permalink) Old 09-20-2018, 10:29 AM
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Three 2018 RGS owners here - including mine. All of us put the Rinehart 4" Classic mufflers on, and I went one step further with the Rinehart slimline duals header. I'm no Rinehart fanboy (and in fact have actively avoided them in the past), but IMHO all of our bikes sound better with the Rinehart mufflers installed. It's not something you notice when you're sitting on the bike, or even from the side, but from behind you can tell a difference between the stock cans and the Rinehart cans. Now that all of our bikes have 3K to 4K miles on them, the Rineharts sound even better.

They have a fairly deep tone to them, not as raspy as Rineharts on earlier year models (this is my opinion only). They are tame at idle but sound great when you crack the throttle - again something you really don't appreciate unless you're riding behind them, or standing behind them and having someone else crack the throttle for you. Quality is great as usual. One thing that surprised me on my bike, is that even with the Rinehart slimline duals header, my bike doesn't sound much different than my two friends that have just the mufflers. If I had it to do all over again, I wouldn't have spent money on the header and been perfectly happy with a muffler change. Performance doesn't seem much different between all three bikes, and since I put on a high flow air intake and the headers I had to have my ECM flashed with the PV. My bike feels like it lost a little bit of low end torque below 2500 RPM, but gained it back from there up to 4000 RPM.

My fuel mileage suffered a little bit as well. Live and learn.
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Last edited by wevsspot; 09-20-2018 at 10:32 AM.
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post #6 of 28 (permalink) Old 09-20-2018, 10:47 AM
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Like Steady Eddy said these M8s Are a Different Animal.I have Rinehart Slimline Duals With a Big Sucker An its been Dynoed with a PowerVision.Not as loud as my 103 HAD Dresser Duals with Boom Cans was Very Loud High Pitched,I had Rinehart True Duals on My 88tc They were Loud More High Pitched The 107 is More Deep An the more Miles I get the Louder it has Gotten.Once I got 2500 miles I think the baffles are opening up,Got 3500 now Sounds Pretty Good Especially when Your on it or Behind it.These M8s have so much less Eng. Noise with these Heads.Its Not as loud as my previous bikes But Sounds good,Nothing will be as loud as my old Wide Glide Evo,With Drags an a Mikuni carb,Those were the days!
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post #7 of 28 (permalink) Old 09-20-2018, 11:39 AM
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I'm on my 3rd set of slip ons ( 17 RGU) in search of Harley sound. Vance & Hines 4 1/2" Titans, Cobra neighbor haters and now S & S MK45. Thinking S & S is best sounding so far with the stock heads. Think the tru duals or decat would def help on the sound.
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post #8 of 28 (permalink) Old 09-20-2018, 05:47 PM Thread Starter
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Thanks for the input lads, hard call to make
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post #9 of 28 (permalink) Old 09-20-2018, 05:56 PM
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Welcome to the forum
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post #10 of 28 (permalink) Old 09-26-2018, 10:42 PM
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I have the Rineharts with the stock headers on my 2018 Ultra. I love their sound. Any louder would be too loud for me on longer rides. Wouldn’t change for anything. You have to consider the source in my case. First time HD owner and first after market muffler install. Doesn’t change the fact the bike now sounds great.
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