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Old Aug 26th 2019, 03:38 AM   #1
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V4 + FULL AKRA noise emission

Hello everyone,
I am writing because in the Italian tracks it is getting harder and harder to drive our beauty with the noise restrictions.
I installed the full Akra with the db killer V.01 fitted.
I am far from acceptable.
Our limits is 105 db +/- 1.
I make 109.
With some escamotage I can barely get 107.
Sometimes the tester close an eye(due to the beauty in front of him),but sometimes not.
I am aware of the db killer V.02 with a kind of new restricted design(I have some pictures),but it is still not very gentle with the Phonometer 107.
Do you have similar problem and more importantly any good solution(a part to reinstall the std exhaust)?
Anyone using the Akra UpMap with the std exhaust?
Any issue on that?
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Old Aug 26th 2019, 04:59 AM   #2
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I Ride: V4 S Corse '19
in Belgium, we have a 98dB limit
The only thing that works here, is this:
https://www.racing4fun.de/markt/details/200952.html

RP exhaust for V4. It is fugly, but it is the only way to race here.
This fits on the full akra lines
Thanks from Phl
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Old Aug 26th 2019, 05:27 AM   #3
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Originally Posted by realnuts View Post
in Belgium, we have a 98dB limit
The only thing that works here, is this:
https://www.racing4fun.de/markt/details/200952.html

RP exhaust for V4. It is fugly, but it is the only way to race here.
This fits on the full akra lines

It looks very vintage(like the old HONDA VTR SP2 or Yamaha R7).
I like it,but weight wise,and power wise,what are the loses?
It seems 3 kg extra,at least.
I am wondering if the Original Std exhaust with the AKRA MAP could solve it(good power with acceptable noise).
I am sure a valve would solve everything
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Old Aug 26th 2019, 06:45 AM   #4
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I Ride: 2015 Panigale R, 1098r Bayliss, Triumph 675R (ex AMA Bike), Beta 300 RR Race
this is why i'm looking forward to electric,being able to ride tracks and not have to worry about this nonsense. Even with a stock exhaust this bike is too loud for some tracks.
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Old Aug 26th 2019, 06:53 AM   #5
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Battery bikes? Lol
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Old Aug 26th 2019, 07:20 AM   #6
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Originally Posted by reganc View Post
this is why i'm looking forward to electric,being able to ride tracks and not have to worry about this nonsense. Even with a stock exhaust this bike is too loud for some tracks.
sorry,but I am not ready....yet
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Old Aug 26th 2019, 10:15 AM   #7
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Just read yesterday that the German's studied the pollution put off by battery cars is higher than a diesel car. This battery "revolution" is a scam at least while the government subsidies are in play. Once they pull the subsidies, then the incentive to buy an electric car/ bike are gone.

They are banning eBikes from the trails in Colorado, and seriously, watching someone on an eBicycle is just plain stupid looking.
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Old Aug 27th 2019, 04:20 AM   #8
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so anybody tried the Akra UPMAP with stock exhaust on the Dyno?

I wish I was able to do it
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Old Aug 27th 2019, 05:32 AM   #9
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Race bike that can't be used on track?
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Old Aug 27th 2019, 05:42 AM   #10
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I Ride: 2012 BMW K1300R special edition, 2019 Panigale V4 Speciale and a Vespa GTS 300 Super
Originally Posted by realnuts View Post
in Belgium, we have a 98dB limit
The only thing that works here, is this:
https://www.racing4fun.de/markt/details/200952.html

RP exhaust for V4. It is fugly, but it is the only way to race here.
This fits on the full akra lines
Holy crap! What the fucking fuck is that? It's like a weird fetish of under-seat phallus
Thanks from JHTmcrider and Lamf1969
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