keeleymod Boss MT-2 , main parts at follow:

C37, C39, C17, C11 - 1u E-cap to 1u metal film
C9, C42 - Change to .1uf
C20, C8 - Change to .22uf tant to .22uf metal film
C34 - Change to .027uf to .047uf
D4 and D3 Change to 2mm RED LED