Just saw this on a TV show (Horse Power) and wondered if it would work on a slip on muffler for a HD?

Check out the link and see what you think.

http://www.dynomax.com/mufflers/dynomax-vt-mufflers

Thats similar to the bloody "flapper" that ive ripped of my last 2 bikes.

" LET EM HERE IT " i reckon !!!!!!!!!!!

Great for riding past populated suburbia and cops. Best of both worlds on the fly.

Yeah I agree Coz, trouble is that the cops are getting really hard on noise now, and I don't wanna have to be changing pipes over all the time to pass noise tests, but hey why did we buy a Harley? As ACDC said 'Let There Be Noise'.

And the system I mentioned I know is like the 'Peacemaker System' but without the electrics, and there are a few 'Bypass Systems' out there, but this one looks pretty simple (if it works okay). And you're right Jayman it would be great for keeping it quiet when you needed to, if it worked on a HD muffler.

I spose the bottom line is that 'ANY' bypass system is illegal anyway, still I'd like to know if it would work and what sort of sound you'd get from it?

Wtf am I looking at or listening to? Without the electronics it's just lollypopping the fucker, which is almost as old as bikes themselves. I'm obviously missing something?

Sorry I know I'll be sorry for asking this but what's lollypopping?

Whats Rolf Harris got to do with it?

forget lollipops, those pipes you got on your springer are going to be illegal anywhere and make your bike run like crap.

SuperTrapp Mufflers are a good option.

Tuneable so your can provide the right amount of back pressure but you can reduce the sound if need be. I was pulled over riding out of Healesville a while ago.I was 2 decibals over but never heard It must be close enough for the EPA not to worry about. If I had to front up for a sound test where ever it is done I would have reduced the discs and installed the closed end cap. It would only have taken a couple of minutes to do.

The pipes were on the bike when I bought it, and yeah 'Bob' I know the pipes are never going to be legal no matter what I do to them (I did put a modified 6" baffle in them to give me some backpressure and while they helped power wise, they were still too loud), and as well it seems that almost every aftermarket exhaust that I've looked at except for a couple are illegal anyway.

I've got a set of stock headers and mufflers that I was going to put back on but I wanted to try and keep a bit of that nice deep rumble that is a Harley. I was just trying to find out if anyone out there has ever tried to do what the 'Dynomax' muffler guys did, but on a Harley, and if no one had tried it, I was wondering whether amongst all of the HD experts on here someone might have a constructive comment on the subject (besides telling me I'm an idiot or making any other derogatory remarks about me asking a question)?

I have a patriot defender exhaust which is sound adjustable. Check them out via google. It does the job nicely but not fitted to bike now as I felt like a change.

Thanks Fat, yeah I saw the defenders when I was looking for pipes but I want that classic 2 into 2 look on the bike, but thanks for the info anyway, and it was interesting to see that 'Patriot' use a manually adjustable butterfly valve to adjust the exhaust noise, I didn't see that when I was looking for pipes because they were 2 into 1's, so I didn't read up on them. But after seeing the defenders I'm going to try and put the 'Dynomax Muffler' idea into use in an old pair of stock slipons that I've got.