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My K24 is currently bolted to my RSX-S's stock exhaust manifold and exhaust piping. Barely clears stock sway bar. Was initially hearing some banging but not since replacing my passenger side engine mount. Must have tore itself apart when my K20A2 seized. Maybe it's aftermarket headers that are having problems?

Personally, I'd have picked up a Type-S engine harness and gotten the Type-S/EP3 intake manifold and throttle body. Wondering which head you have on the K24. Anyway, get the car running first any way you can. All that stuff I mentioned can be done later.

 

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Interesting. I never knew the K20A3 IM wouldn't fit. Are you sure? Is it hood clearance issues or the AC line?

A nice clean alternative to rewiring the TPS (for Type S TB) is just to use the Type S engine harness I find. Also a nice side effect is that there's no extra wiring for the K20A3's IM (which is able to electronically control how the runners direct air).

I kinda want to sell my Type-S and get a Canadian base RSX. No sunroof, less sound deadening, less "stuff". Almost like a DC5 Type R without the nicer engine and drivetrain.

 

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You'll need K-Pro. You'll only be feeding your K24 enough fuel for a K20. Lean = bad.

There's other ways besides rewiring. You could swap sensors as well. But for the TPS, aren't you using the RSX-S throttlebody still?

I kept my K20A2 head for my TSX swap.