4-pots didn't come in till STi 3, same with the rear lights, maybe even STi 4.
It sounds like an STi RA either a Version 1 or 2 with the optional Lamco STi gauges.
Not all STi on the early models had red inlets, although some seem to.
Ally intercooler is defo STi.
Is the strut brace a thick Ally brace or a thin carbon tube.
If it's the Ally type it's a Version 1, if it's carbon it's version 2.
The ECU will be labelled SB for Version 1 or 7K for version 2.
Intercooler water spray and diff control point to it being an RA.
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