2005 WR450 Exhaust Restrictor
Posted August 20, 2005 - 09:02 AM
Posted August 21, 2005 - 09:12 AM
Does anyone know for sure that if the exhaust restrictor is removed that the sound level will remain below 96db?
I doubt it. Get the GYT-R insert from Yamaha, it should pass that level and still give you adequate performance with a lot less restriction.
Posted August 21, 2005 - 02:25 PM
I welded up my own out of stainless tubing but I also took the baffles out so it is louder than 96dbs now. Hope that helps out some. Check them out at:
Posted August 21, 2005 - 03:16 PM
Posted August 21, 2005 - 03:37 PM
Posted August 21, 2005 - 04:06 PM
Don't remove the whole baffle! Remove the baffle and then drill out the two small rivets and remove the small inner baffle. The db will be below 96 with the small insert removed but not the whole baffle. The PMB insert is the way to go but you should rejet if you install it.
Per the May issue of Dirt Bike magazine, yes,the 05 does stay below the 96 db limit with the end baffle removed. Don't waste your money on an insert.
Posted August 21, 2005 - 05:59 PM
Posted August 22, 2005 - 07:51 AM
Why should you worry about being stopped on the street by just having your baffle removed? HARLEYs can get away with NO MUFFLERS at all.
WHY IS THAT???????
Posted August 22, 2005 - 02:53 PM
Posted August 23, 2005 - 07:39 PM
Posted September 03, 2005 - 04:01 PM