Hello again,

Three more questions about my ITS Civic Si build:

ECU: can I run an OBD1 ECU on an OBD2 engine if it fits in an OEM ECU housing? Can I change my redline?

Bumpers: I can't find the IT rule for bumper beams. Can I remove them if the cover and appearance remains intact? Actually, the front one is lightened and the rear one is gone. I need to know if I have to find replacements.

Windshield washer fluid reservoir: do I need to reinstall it?

Thanks again!