Originally Posted by LA_Dog

Still lurking around- been working on renovating one of my homes in Palm Springs.

I really like how the J&H pipes look. I can see the benefit of having a quiet pipe for local laws or whatnot, then "letting it rip" when outside of town.

BUT! I personally do not like pipes that alter the tune of the bike by flipping a switch or whatever. if your bike is tuned for "Hyde" and you change it to "Jekyll" then your tune will be way off. Anytime you alter air/fuel you have to re-tune. This is EFI not the old carb days.

I suppose you could make two tune files for your PV, TTS, etc- One with the pipes in "J" mode and one with the pipes in "H" mode. But you would have to turn off the bike each time to swap the tune file.

If it were me I'd buy a set for how they look, gut them. and put in some BCT baffles

Hey BTW guys I just sold the Breakout on Saturday, it is going to some lucky guy in Massachusetts. So right now I have ZERO motorcycles. I sold five bikes in the past two months.. didn't think they would sell so fast. Will be buying next round of bikes in the coming months.

I was actually really sad to see the Breakout go. It is my favorite project bike to date. I might have to pick up another one. A truly great bike once a few flaws are addressed.

Originally Posted by Lindosan

Well thank you for all your help, I really hope you will buy another BO so we can keep you in here !!!
Why not this one https://www.youtube.com/watch?v=vw5gKsHLv1c
I looked at it in the shop the other day and yeah its really cool.

Originally Posted by rquest

Jezz, I bet that's expensive...

Originally Posted by Paul Dennis

Hi I had Jekill and Hyde fitted on my bike when it came from the dealer, what I found was... sound was nice the qaulity of the pipes was nice and well made, what I didn't like was when it started up i sounds like a 125 scooter, and the button to change the sound didn't always work, which kinda put me off as I thought one day they are gonna fail, so I took them off. This is just my finding and i'm sure othere will disagree.

Originally Posted by super2kc

Originally Posted by EagleRay

The actual feature of the J&H exhausts is not that you can manually put them either in open or closed mode. It's that the exhaust has a control unit that's connected to the ECM and that's doing the mode change automatically according to the speed you're riding at. That is to comply with European regulations on noise emissions.

Here in Germany e.g. an exhaust is not street legal as soon as it exceeds the db values of the stock exhaust at certain rpms. That's where the active exhaust control of the J&H or KessTech or Penzl exhausts kicks in. The control module closes the exhaust at rpms between 1500 and 3000+ when the bike is not moving. If the bike moves it will close the exhaust at speeds between 50 and 80 kph. Those are the two situations that are clearly described by the law and cops are only allowed to measure noise emissions within those limits. All other speeds and/or rpms the exhaust will be open.

Nevertheless there are certain mechanisms to put the exhaust into a "forced open" mode

Originally Posted by Lindosan

Wonder what LA is up to this winter ????

Anyone has experience with exhaust from Dr. Jekill and Mr. Hydes ?

Originally Posted by Lindosan

Well thank you for all your help, I really hope you will buy another BO so we can keep you in here !!!
Why not this one https://www.youtube.com/watch?v=vw5gKsHLv1c
I looked at it in the shop the other day and yeah its really cool.

Originally Posted by blacklander48

I am using the J&H exhaust with the headers. Back in my country, we have street legal issue with db too. That explains why people part so much of their money of this exhaust system. Given a choice, I think your V&H will sound much better in my opinion. But of course, the switch can be useful at times.