Originally posted by yfz450ryder@Dec 29 2003, 12:28 PM
Can ne1 tell me what deciples these pipes r putting out???
Anyone who might be interested...
Click--->
Noise Testing Data
The California State Parks Off-Highway Motor Vehicle Recreation Division has been testing noise emissions of motorcycles and ATV’s for about a year. This information can be used to help enthusiasts find a muffler for their OHV that will comply with California’s noise emission standards. Only tests with a reading of 101 dBA or less are included. The list is by make, model and year of the OHV tested.
2003 Honda CRF450 - Pro Moto Billet spark arrester without quiet insert - 96.4 dBA.
2003 Honda 400EX - stock exhaust - 87 dBA.
2003 Kawasaki KLX400 - new series FMF Q pipe - 93.5 dBA.
2002 Yamaha WR426 - original FMF Q with quiet tip - 95.4 dBA, Supertrapp IDS2 with 5 disks - 99.8 dBA, Silent Sport Racing Muffler - 90.4 dBA, stock exhaust with GYT-R tip - 90.0 dBA, stock exhaust with Pro Moto Billet insert - 91.8 dBA.
2003 Suzuki DRZ400S - new series FMF Q - 89.9 dBA.