If some 1 knows how 2 fix K&N then only put or else don't try. Coz the air box is attached with PAV n Crank Breather. For AFR, I don't remember whether it has LAMBDA or not. But can find out tomorrow. EFI can be set only by remapping not by upjetting coz R15 has Injector. For EFI u can simply put power commander instead of remapping. It can change the parameters by simply feather touching the options which are given on commander console( cost ).Talking about IR, they r simply great.