Motor questions. please help.
#1
Motor questions. please help.
Hello. I just purchased an s5 street ported na block and wanted to swap it into my s4 since it has a blown coolant seal. My question would be can I run my stock s4 ecu if I swap my intake over to the block? I'm currently running tii intake with 550cc injectors in secondary. Everything is ported and I have s5 tii fuel rails. Idk if I need to swap in the ecu with the other motor or if I can just keep mine.