| The nearly free and/or should be done - plenum water hose deletion/bypass
- if you have the plenum off, I'd grind the injector areas so you can change injectors as needed later without having to remove plenum again or grind when installed
- valve cover gaskets/resealing
- change every coolant hose left that there is
- PCV valves
- remove and clean Aux air and IACV assembly internals and test to ensure are working
- clean all connectors and associated part terminals
- steering rack bushings if they are at all worn
- inspect the power steering hoses
- check the oil cooler hoses condition
- clutch, rear main seal, front & rear trans seal, shifter bushings, trans mount if needed
-replace any harnesses that are questionable
-timing belt if anywhere close to time
- clean engine bay
- pan gaskets/seals a little extra cost but now's the time - add downpipes as there's no better time (change o2's if questionable)
- detail and refinish plenum if you are heading for "the look"
- EBC as it's a lot easier to plumbing the actuator lines and remove the old factory stuff with engine out
- eliminate HICAS if you intend to. At this point you can strip out all the plumbing and replace with an N/A pump
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