LSX Coils may be able to work with a sr20det rwd ecu. I am not sure what type of
signal the LSX Coil takes to fire the spark though. gotta look at their wiring diagram
Note: If your comfortable with wiring and repining you can use a rwd ecu on your fwd setup, which then allows you to use coil packs but, you would need to setup a manual cooling system option (like those derale fan controllers) as the rwd ecu doesnt manage electric fans