2021 Softail Jekyll & Hyde Exhaust (Euro5) Sound?
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From: England
2021 Softail Jekyll & Hyde Exhaust (Euro5) Sound?
I'm leaning towards getting one of these for my new bike, as I'm not sure how easily or cheaply I'll be able to get insurance on a bike with a modified ECU. The Jeykll & Hydes cost a packet up front, but I think that may be offset somewhat by the savings over time on insurance compared to ECU related mods.
I've only heard 3 exhaust notes on the softail in person. 2021 OEM, Short Shots full system and Eliminator 300 slip ons.
Does anyone here have a set of Jekyll & Hydes who might be able to give me an idea of how the sound compares with the systems above? I realise sound is very subjective in terms of quality, but maybe its possible to make a comparison?
Thanks
I've only heard 3 exhaust notes on the softail in person. 2021 OEM, Short Shots full system and Eliminator 300 slip ons.
Does anyone here have a set of Jekyll & Hydes who might be able to give me an idea of how the sound compares with the systems above? I realise sound is very subjective in terms of quality, but maybe its possible to make a comparison?
Thanks
Stellar HDF Member
Joined: Feb 2017
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From: East Flanders - Belgium
I have a J&H on my M8 Fat Boy, Big Radius on my M8 Street Bob and S&S slip-ons on my M8 Fat Bob, I have no sound clips but the J&H with "closed" valve is very quiet like stock exhaust, half open is the same as the S&S
and open they are as loud as the Big Radius.
Try to look at YT and compare sound clips there, plenty of J&H stuff out there, same for the others.
and open they are as loud as the Big Radius.
Try to look at YT and compare sound clips there, plenty of J&H stuff out there, same for the others.
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Intermediate
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From: England
I have a J&H on my M8 Fat Boy, Big Radius on my M8 Street Bob and S&S slip-ons on my M8 Fat Bob, I have no sound clips but the J&H with "closed" valve is very quiet like stock exhaust, half open is the same as the S&S
and open they are as loud as the Big Radius.
Try to look at YT and compare sound clips there, plenty of J&H stuff out there, same for the others.
and open they are as loud as the Big Radius.
Try to look at YT and compare sound clips there, plenty of J&H stuff out there, same for the others.
What confuses me is what J&H says on their web site. They claim that their exhausts are EC, TUV etc legal in all modes of operation. But the noise limits for those countries is just 77lb, which is quiet like stock. If they sound like a Big Radius when open, surely they can't be 77lb. Are your a few years older perhaps, certified before the db limits came in? I don't want a 77db exhaust, I'm just hoping they have the EC marking AND make about 85-90db.
ECU mods are only for the 2020 slip ons or such, J&H doesn't require it, I dont think. Either way, I'm not sure where I'd stand insurance wise with an undeclared ECU mod. Lots of people don't bother telling the insurers, personally I've always declared mods, within reason.
Road Warrior
Joined: Jun 2015
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From: Edinburgh UK
Who is your insurer? I could declare up to 5 mods without any increase in premium when I was with MCN. I think the Harley Insurance (Carole Nash) is the same but not changed anything on this one yet.
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I had J&H pipes on my slim, about 5 years ago so they might have improved since, but...
With the valve closed it was much quieter than stock, proper sewing machine sound.
With the valve open it was extremely loud. Trigger all car alarms in the car park loud.
And the valve adjustment system broke after a few months, so it was stuck open all the time.
On top of that, I think their "fully legal" claim is bull, I guess they say that as they have the E stamp because when the valve is closed the pipes are super quiet, but there is no chance in hell that the open valve modes are any way legal, unless the new pipes are much quieter than the ones I had.
With the valve closed it was much quieter than stock, proper sewing machine sound.
With the valve open it was extremely loud. Trigger all car alarms in the car park loud.
And the valve adjustment system broke after a few months, so it was stuck open all the time.
On top of that, I think their "fully legal" claim is bull, I guess they say that as they have the E stamp because when the valve is closed the pipes are super quiet, but there is no chance in hell that the open valve modes are any way legal, unless the new pipes are much quieter than the ones I had.
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Joined: Feb 2017
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From: East Flanders - Belgium
Thats very helpful, thank you.
What confuses me is what J&H says on their web site. They claim that their exhausts are EC, TUV etc legal in all modes of operation. But the noise limits for those countries is just 77lb, which is quiet like stock. If they sound like a Big Radius when open, surely they can't be 77lb. Are your a few years older perhaps, certified before the db limits came in? I don't want a 77db exhaust, I'm just hoping they have the EC marking AND make about 85-90db.
ECU mods are only for the 2020 slip ons or such, J&H doesn't require it, I dont think. Either way, I'm not sure where I'd stand insurance wise with an undeclared ECU mod. Lots of people don't bother telling the insurers, personally I've always declared mods, within reason.
What confuses me is what J&H says on their web site. They claim that their exhausts are EC, TUV etc legal in all modes of operation. But the noise limits for those countries is just 77lb, which is quiet like stock. If they sound like a Big Radius when open, surely they can't be 77lb. Are your a few years older perhaps, certified before the db limits came in? I don't want a 77db exhaust, I'm just hoping they have the EC marking AND make about 85-90db.
ECU mods are only for the 2020 slip ons or such, J&H doesn't require it, I dont think. Either way, I'm not sure where I'd stand insurance wise with an undeclared ECU mod. Lots of people don't bother telling the insurers, personally I've always declared mods, within reason.
My J&H system is from 2019 and E stamped, I do not now how the get the the EU approval, I'm thinking with the valve closed because completely open is loud as hell
. You have 3 settings from the valve, closed - half open and open.I use the system with the valve half open, I also have an highflow intake filter so I installed a FP3 on it and dit the tune with the valve in half open position. Stock the bikes runs lean and I def recommend a tuner in any case but that is just
me
. I have at this time 6 FP3's and one PV in use.What I did was installing a reed contact between the switch box from the J&H, just in case I'm pulled over for a db check they can not manipulate the J&H switch in will always run with the valve closed. Now not that I care directly because
both my FXBB and FXSB have a V&H Big Radius that is terribly loud but I had the opportunity to do that here with the J&H. The Fat Boy with J&H is also the only motorcycle that I use to make a trip with the wife, often to the Ardennes
where you are easily checked for noise nuisance.
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Stellar HDF Member
Joined: Feb 2017
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From: East Flanders - Belgium
this year. The system was not dealer installed and my 2 year warranty was just over with 2 months or so, I emailed them with pictures and got a brand new set of end tips, no questions asked and no return of the tips
with the chrome pealing of.
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Thread Starter
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Joined: Jul 2021
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From: England
I don't have one yet as I was with BMW. I did have problems before though which is why I ended up with BMW. Had a situation where more than one underwriter declared an adjustable gear lever as "gear box modification", which they then declined to insure. Ended up paying a huge premium because of it due to lack of more time to shop around. Different situation, but mods in general beyond end cans do limit potential insurers a bit in my experience.
Thread Starter
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Intermediate
Joined: Jul 2021
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My J&H system is from 2019 and E stamped, I do not now how the get the the EU approval, I'm thinking with the valve closed because completely open is loud as hell . You have 3 settings from the valve, closed - half open and open.
I use the system with the valve half open, I also have an highflow intake filter so I installed a FP3 on it and dit the tune with the valve in half open position. Stock the bikes runs lean and I def recommend a tuner in any case but that is just
me. I have at this time 6 FP3's and one PV in use.
What I did was installing a reed contact between the switch box from the J&H, just in case I'm pulled over for a db check they can not manipulate the J&H switch in will always run with the valve closed. Now not that I care directly because
both my FXBB and FXSB have a V&H Big Radius that is terribly loud but I had the opportunity to do that here with the J&H. The Fat Boy with J&H is also the only motorcycle that I use to make a trip with the wife, often to the Ardennes
where you are easily checked for noise nuisance.
. You have 3 settings from the valve, closed - half open and open.I use the system with the valve half open, I also have an highflow intake filter so I installed a FP3 on it and dit the tune with the valve in half open position. Stock the bikes runs lean and I def recommend a tuner in any case but that is just
me
. I have at this time 6 FP3's and one PV in use.What I did was installing a reed contact between the switch box from the J&H, just in case I'm pulled over for a db check they can not manipulate the J&H switch in will always run with the valve closed. Now not that I care directly because
both my FXBB and FXSB have a V&H Big Radius that is terribly loud but I had the opportunity to do that here with the J&H. The Fat Boy with J&H is also the only motorcycle that I use to make a trip with the wife, often to the Ardennes
where you are easily checked for noise nuisance.
Doesn't make sense that fully open its loud as hell if it also has an EU approval does it? From what I can see, the noise regulations (80db level) came in with Euro3, which was introduced way before you bought your J&H. Confusing things further is they also changed the way they measured the sound at some point so who knows what impact that might have had.
Really appreciate your input on this, thanks.