db. level of uncorked wr 450 pipe?
Posted July 10, 2003 - 04:30 PM
Posted July 10, 2003 - 05:58 PM
ddialogue is right ! when I had my stock un-dorked pipe on
it tested at 102 db I loaned it to a guy that was going to
do a pokerrun with his YZ426 he needed the spark arrestor.
He didnt want to use the small WR insert,so he made his own
out of a piece of 90 degree bend pipe and drilled a hole in
the side so it could be held in by the stock screw.
This pushed the sound straight down instead of out.
Needless to say when he was tested he passed no problem,
And his bike wasn't all choked up,just abit with the WR pipe.
Posted July 10, 2003 - 06:09 PM
Posted July 10, 2003 - 07:03 PM
Posted July 10, 2003 - 08:13 PM