Originally Posted by Lille-bror

Amen

EDIT: Have to ask: Where can I read in the ROAR and /or IFMAR pipe lists, that 9853 an 9886 are allowed for ROAR approved races?

9.2.4.2 A ROAR or IFMAR approved muffler or tuned pipe must be used in all ROAR sanctioned events.

Other than some JP pipes and some Asian pipes there is not much difference between EFRAs and IFMARs pipe lists.


EFRA approved pipe list

IFMAR approved pipe list

ROAR approved pipe list (from 2009)