|
|
Member
I'm going to try and run my first WORCS races this year. Hopefully Milford and the two in WA. I wanted to know what pipes people were running to meet the sound restrictions? I've always raced MX and am looking to replace the Sparks exhaust on my YFZ with something acceptable for WORCS. Thanks
'08 KTM XC 450
Member
Im currently running motoworks on my 06' yfz with quiet core. passed 97 db's. I just repacked it for round 2. I ran LRD at havasu last season with a quiet core and was 95db's. sparks would be tough to pass sound.
WORCS 2009 Open and Sport B champion
WORCS racer #714
2010sponsors
ATV Rider, Pro Armor, Pro Design
All Balls, Roll Design, ELKA, FMF, Champion Motorcycles
GPR, FASST, ASV, EVS, IMS
Member
Yeah that's why i'm getting rid of the Sparks. It tested at 101 with their "quiet" tip and spark arrestor in.
'08 KTM XC 450
Junior Member
Motoworks has a new pipe that will pass sound.
Senior Member
My FMF Factory 4.1 pipe passed with 96 with no cores or spark arrestors!
Donna Espensen
WORCS #42
2009 SPONSORS:
Carter Powersports
GoForItGraphics.com (G4)
FMF Exhausts
GPR Stabilizers
Maxxis Tires
EBC Brakes
TwinAir Filters
Fasstco
StrengthPro
AmsOil
Elka Suspension
ASV
Senior Member
My sparks passed twice last year. Just put an old wore out seat on it.
2006 or so yfz
2009 yfzR
sponsors
Enumclaw Yamaha, ODI grips, Rekluse Z-start clutches, DeVol Engineering, Adrenaline Designs, Sudco, AC Racing, Galfer Braking Systems, Tag Metals, Sunline, Action cycles, American powder coating, Quad-tech,Wiseco pistons, Fly racing, Scott USA, Holz Racing Products, Lonestar, Hyper Xtreme Sportswear, Hiper Wheels, Maxxis and grandpa bill.
And for the body....... MotoX Nutrition
Posting Permissions
Reply With Quote