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I have a 93 h23a1 prelude si 5 spd Manual. I believe its p14 ecu what can i do to chip it etc.

What performance options are there i can do for fairly cheap? Ive already done full exhaust header-> muffler and a short ram cold air intake. What other options do i have? i was looking at chipping ecu but have no idea on how to go about that. Any advice on performance upgrades would be appreciated.