I don't use it and there are others on here that do the same. After a minute or so they expand and seal up nicely. And I do know that my header and muffler expands and contracts about 4-6mm's at that slip connection.
WR450 2013 FMF muffler
Posted September 04, 2013 - 07:57 PM
WRLuisSA: what was the part number on the muffler you got ?
I want a Ti muffler on my bike. The mufflers listed for the 2012 are not Ti. I need to get a muffler from an earlier model and make it work.
Would it be possible to bend the inlet pipe where its close to contacting the engine ?
Posted September 05, 2013 - 11:14 PM
Powercore Hex 044397
Not sure if an earlier model will work though... Maybe others can help you