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mersingt
03-26-2007, 08:22 PM
looking for a good pipe but cant find many that have 99db or less....

kinda liked the sparks

but now the hmf full....ive got a hrc kit (05 header)
BlaineKaiser450
03-26-2007, 08:28 PM
go with a sparks
mersingt
03-26-2007, 08:31 PM
arnt those very loud tho
03-27-2007, 08:37 AM
My Dr D with new packing tested @ 94db. After 5 races it went up to 97db.
TRX450RACER174
03-27-2007, 10:04 AM
Buy the quiet core if you go with the sparks, it will lessen the db
but will rob some power,or i double stack spark arrestors to bring down the dbs for tech.
TWILES
03-27-2007, 12:22 PM
Does anyone know what the FMF Factory 4.1 is?
mxquadracer115
03-27-2007, 10:03 PM
Duncans new HQ exhaust 96-99 db and you cant tell the difference in power from the normal one
Nick110
03-28-2007, 05:30 AM
Rossier with supertrap endcap will pass so will the Dasa with a quiet core.