RCX slip on?
Seasoned HDF Member
Joined: Jul 2017
Posts: 5,749
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From: High Point, NC.
I know this post is a few months old, but Im looking at either the RCX, Vance & Hines, and S&S MK45 slip ons. Sound is important, but not as important as keeping the warranty (so no head pipe until the warranty is up), as well as not losing any low/mid range torque. Anyone have real world experience with these? I currently have a 2018 Street Glide Special with stock pipes, Heavy Breather, and Pro Street Tuner.
Seasoned HDF Member
Joined: Sep 2009
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From: SE Michigan
They are markedly quieter than my RCx 4.0 slip ons on my otherwise stock 2018 FLTRU
Seasoned HDF Member
Joined: Jul 2017
Posts: 5,749
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From: High Point, NC.
Not sure which Model S&S he has, but a buddy of mine bought S&S 4.5 slip ons with no baffles (the baffles are included but optional to install) when he bought his new blacked out street glide special.
They are markedly quieter than my RCx 4.0 slip ons on my otherwise stock 2018 FLTRU
They are markedly quieter than my RCx 4.0 slip ons on my otherwise stock 2018 FLTRU
Seasoned HDF Member
Joined: Sep 2009
Posts: 17,148
Likes: 6,171
From: SE Michigan
This is definitely what they look like: https://www.sscycle.com/products/mk4...ouring-models/
Last edited by Keithhu; Jul 24, 2018 at 04:01 PM.
Ultimate HDF Member
Joined: Oct 2016
Posts: 5,063
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From: On my bike!
Ran them both on my 2017 SGS (along with 3 other sets) and my take on the RCX and S+S is.....RCX much better idle, the S+S is just dead sounding at idle, with stock cam anyway, sounded like my F150 idling. The S+S is louder on the gas without the DB reducers in anyway. S+S just had a weird flappy/poppy sound to it that I did not care for, especially on decel. Cruising in 6th at low RPM and grab some throttle and the MK's sounded like a jack hammer, wasn't a fan. The RCX was the cleaner all around sounding pipe, in my ears anyway. The S+S is not a bad pipe, just not my tone, I'm sure a cam would change things up greatly for either of these though.
Novice
Joined: Aug 2017
Posts: 16
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From: NY
Whats everyone opinion on retaining low end torque on these pipes? I stopped at a dealer today and the parts guy told me that RCX or Cobras would retain all the torque while boosting sound. Can anyone confirm this?
Seasoned HDF Member
Joined: Jan 2008
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From: State of Confusion
of course he did
Novice
Joined: Aug 2017
Posts: 16
Likes: 0
From: NY
He said they wouldnt be LOUD, which I fully understand wont be achieved until at least the head pipe is replaced, but that they would have a deeper growl to it, with a LITTLE sound increase. But more important to me is not losing torque or emptying my wallet due to trial and error. I have already purchased one set of pipes that robbed me of low end. They might work good for someone who replaced the head pipe and uses a real tuner, but until my warranty expires, Im just looking for some sound without power loss.
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Cruiser
Joined: Apr 2017
Posts: 209
Likes: 48
From: Indiana
I've got the 4.5" RCX on my 17 Road King. I've got about 6000 Mike's on the mufflers and I like the sound especially at idle. No drone on the road and I did not notice any loss in the low end torque. I gave not tuned it yet. I have a FP3 waiting to go on probably next month. My warranty expires in Oct and the ESP picks up at that point. I would buy them again, i get a lot of compliments on the sound.
Seasoned HDF Member
Joined: Jan 2008
Posts: 13,676
Likes: 11,468
From: State of Confusion
He said they wouldnt be LOUD, which I fully understand wont be achieved until at least the head pipe is replaced, but that they would have a deeper growl to it, with a LITTLE sound increase. But more important to me is not losing torque or emptying my wallet due to trial and error. I have already purchased one set of pipes that robbed me of low end. They might work good for someone who replaced the head pipe and uses a real tuner, but until my warranty expires, Im just looking for some sound without power loss.