Please help identified this parts

[ywingfighter]

Hello,
I am in the process for detail my Y-Wing Helmets but looking for some original parts. I am sure this comes from differend modelkits.
Can anyone tells me from what kits this comes?
Many thanks

 

[Rhett J Martin]

Am I the only one thinking that grill peice is the Bikerscout helmet greblie cut down, or maybe the opposite side of that engine peice?

No Idea on the speaker one . .maybe a tank peice . . .

 

[MonsieurTox]

On the first pic, one of the part assembly (the half cylinder) is from the 1/6 Tamiya BMW R90S.

 

[ywingfighter]

On the first pic, one of the part assembly (the half cylinder) is from the 1/6 Tamiya BMW R90S.

Cool!!..... thank you. Hope anyone can identifing the other parts.