yfz 450 to loud
 

my 2005 yfz 450 is very loud,it is almost deafening . it has a duncan racing fat boy 4 exhaust with head pipe. does anyone know how to make it quieter.

yfz 450 to loud
 

put the stock exhaust back on, or buy something else that isn't as loud... or loud only when u want it to be..... like the HMF exhaust and quiet core insert

yfz 450 to loud
 

Try repacking the can. That can help.

Try calling Duncan and see if they have a "Quiet Core" available for your pipe.

Try this before spending BIG $$$$ on a whole new exhaust.

yfz 450 to loud
 

thanks for the info , I have already repacked it and it didnt help. but i will call duncan and see if they have a quieter core . thanks