Toda's ecu is worked by hondata, if you are buying toda's spec A parts, get their ecu or just buy the whole engine kit. I think Toda said Hondata cannot sell the ecu for Spec A parts, and it is required to use the Toda-Hondata ECU. Mugen ECU is for circuit racing, and it is meant for type R or with mugen parts, nice but i wouldnt recommend it.

i have not seen ITR intake gasket, but hondata's is pretty thick.