White Brothers Exhaust - XCR or E Series?
Posted April 30, 2008 - 09:52 PM
Also, Will the YZ450F muffler bolt straight up to my header pipe, or do I specifically need to buy a WR450F muffler? The YZ part number is 05-90010 and the WR part number is 05-90020.
Posted April 30, 2008 - 10:21 PM
Thats the big issue...the WR has a smaller diameter header than the '06 and the '07. BTW the '08 YZ header is too fat to work with the '06 or '07 YZ muffler or the '07 and '08 WR muffler.
Posted May 01, 2008 - 05:35 PM
Posted May 02, 2008 - 01:09 AM
If I buy a WR exhaust, it will slip straight on and I won't need a gasket at all for the header ---> mid pipe join.
Correct? So the mounting points and lengths are the same for both, just the diameter of the YZ and WR mid pipe is different.
Posted May 02, 2008 - 05:12 AM