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View Full Version : 450R slip-on that will pass sound test?


infantry317
07-01-2005, 06:18 AM
Here in D23 the Harescrambles sound limit is 96db. Is there a good slip-on that will pass with the quiet-core?
T2RACING
07-01-2005, 06:57 AM
Dr. D w quiet core passes...
infantry317
07-01-2005, 08:19 PM
Thanks,
Anyone else got some suggestions? I'd like to run uncorked sometimes and then cork it up again for XC season.
Colby@C&DRacing
07-03-2005, 12:00 PM
HMF with the quiet core will pass
Punk'd
07-03-2005, 07:41 PM
I dont think sparks will pass:p I love the pipe though.
mikes450r
07-03-2005, 07:45 PM
well the pulsecharger will pass and it will be availabile again next week...i would also check with rossier's long can..

mike
Moto92
07-03-2005, 09:24 PM
Originally posted by mikes450r
well the pulsecharger will pass and it will be availabile again next week...i would also check with rossier's long can..

mike

These are the numbers straight from Rossier

Long silencer 15" 96-97 dbs with sparky, 100-101 without

short silencer 12" 100-101 dbs with sparky, 104-105 without

Along with the dyno results to show this pipe has the most power gains on a 450R...Id say theres your winner!