Copper Exhaust Donuts for Attak Do/Don`t

[1970mach1]

Any feedback I am looking at replacing my exhaust donuts with the copper ones Any feedback or experiences any could share with me. Not sure whether it is a good idea or stick with OE

 

[yamahas]

Moved it to the correct section, hopefully you get more reply's here.

Welcome to TY!

 

[Murse]

I installed mine last season bought them from sled toyz and work great. As far as I can tell no issues. I have not had any back firing or leaks and performing the stall test, she stalls every time.

 

[1970mach1]

Thanks for the info, I also found another post about them