Akrapovic header with Urban Brawlers = SICK!!

angelo112233 said:

Cops would hear you coming!

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They dont bother the loud *** harleys around here, its more the park service that would worry me all the mountains i ride in is considered national forest land and the park rangers around here have radar and like to play traffic cop sometimes, they probably could get you for a slip on without a baffle because the vehicle is suppose to have an approved spark arrestor. I got nabbed by them years ago for treading on their land with a dirt bike, there was a group of us they didnt much care for that lol but they let us off with a good tongue lashing. I think thE baffles would change the pitch and make it a little deeper insteads of high pitched sound thats how they work with just the brawlers any way. Of course in that you tube clip above they was twisting the throttle pretty good insteads of cruising, alot of the time you can tone it down with lower rpm's thats how i used to do my camaro with headers and a 3" straight through muffler, i could drop the rpm's down to 2000 when i was around the poluce and they never bothered me.

Mark59 said:

Wander what it sounds like just normal riding without twisting it up, i think i could like it, would like to here it with the baffles in the brawlers.

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Mark

I no longer have the phone that fly by clip was taken from so any chance of an honest over the net sound comparison is out the window but I'll see if I can give an example here of what Akrapovic headers and corked Brawlers sound like. Hope it helps.

What I have and used to do this is a $35.00 Craftsman Decibel Meter. Inexpensive yes but surprisingly accurate and I trust it to be very close if not with-in a 10th as it was in the side by side with the certified +/- 1.5 db. Fluke meter. Also Credit to Jay (he'll troll this I know) a good friend with me who had been bribed with breakfast and pistol range time to cox him out so early setting just off the side of the asphalt writing down what he saw and prepared to be my -Buddy- if need be.

Ambient noise out side was 51.7 db. Nothing but birds, bugs and a breeze.
At idle with meter in hand at chest height setting in the seat 88.9 db.
For the next set of readings the meter was close to 3 ft. off the side of the pavement on a 5 ft. stand, bike in 6th gear on level ground and maintaining steady speed.
50 MPH / 80 KPH 107.1 db.
55 MPH / 88 KPH 108.4 db.
60 MPH / 96 KPH 109.2 db.
70 MPH / 112 KPH 114.2 db. (buddy told me here is where it got loud to him)
90 MPH / 144 KPH 120.2 db.
Full throttle
128 MPH / 205 KPH close to 11000 RPM 5th Gear 131.1 db. said he could hear me the whole time and I guess it to be a little over 1/3 of a mile or 600 meters as the strip is 3/4 of a mile long and we set up just passed the middle.

159 MPH / 255 KPH again close to 11000 RPM 6th Gear 130 "ish" cause he blinked when I blew by and I wasn't doing it again, had to use part of the drive way to the landing strip to get up to speed and still have room to shut down.

Here is one of the charts I've seen floating around also for an example of how loud things are.

Mark59 said:

They dont bother the loud *** harleys around here, its more the park service that would worry me all the mountains i ride in is considered national forest land and the park rangers around here have radar and like to play traffic cop sometimes, they probably could get you for a slip on without a baffle because the vehicle is suppose to have an approved spark arrestor. I got nabbed by them years ago for treading on their land with a dirt bike, there was a group of us they didnt much care for that lol but they let us off with a good tongue lashing. I think thE baffles would change the pitch and make it a little deeper insteads of high pitched sound thats how they work with just the brawlers any way. Of course in that you tube clip above they was twisting the throttle pretty good insteads of cruising, alot of the time you can tone it down with lower rpm's thats how i used to do my camaro with headers and a 3" straight through muffler, i could drop the rpm's down to 2000 when i was around the poluce and they never bothered me.

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It's not just about loudness.
With a louder exhaust it looks like you're going much faster then you're really going.
It's just seeking for attention you want to avoid.

If you like to rider harder then legally allowed, and like to do it a lot, the best survival technique would be to be as invisible (unhearable) as possible.
It's the reason I removed my Bi-xenon angel eye mod (too recognizable), and that I'd like to have my exhausts as silent as possible.

I live in a mountain village, and our cops are very different then yours. But I've seen too many cops prepare to invest a biker, when they heard him coming towards them from miles in advance (due to too loud exhaust). Most of the time I saw this they where even off duty ... waiting at a snack bar for their food, but they just couldn't ignore the other people complaining about the sound.
The funny thing is, you hear those loud bikers from way too far, and it gives the cops here roughly 3-5 minutes to prepare themselves. Going to the cop car, getting the radar gun. Putting themselves in position. Fining the biker for a minor speed offence, and fining him big time for every illegal part on his bike.
All this under loud applause of the locals who're fed up with egocentric bikers that cause noise pollution.

Anyway each his thing and his preference.
I'm just saying that it most likely will give you much more attention then you would like to have.

Hmm... I've just inserted the db killers into my G&G Moto2 exhaust and I'm actually enjoying the lesser noise intrusion into my helmet. I believe the beauty of an internal combustion engine lies in the exhaust note it produces. We are inevitably headed toward an electric vehicle future so I'd like to enjoy the aural experience of twisting the throttle because speed is something not unique to an internal combustion engine - you mash the pedal of a Tesla and it will pick up speed... without drama, without any sense of occasion.

Yes, one lives with the reality of increasing noise control regulations and strict enforcement. Yes I have inserted db killers in my exhaust. Yes I need to watch out for and even anticipate a cop ambush... but I'm not into motorcycling just for the speed or for covering miles. I am into it for the sense of occasion, the theatre, the symphony of four pistons at work furiously forcing the gases out the cylinders and into the pipes, the scream of an inline four.

Again, it's a very personal thing and I am not pushing forth my view to others. But this is what gets my heart pumping.