it depends on what motor is in the car. if there is a GSR motor in the hatch, then it'll work. but if it's a stock hatch si, then it won't work. the Si is a SOHC, and the GSR ECU will work on the DOHC VTEC cars.
What year is the GSR motor in his hatch? If it's a 92-93 (B17A) everthing will be just fine. But if it's a 94-95 (B18C1) with the stock dual runner intake manifold, the P61 ecu will not operate the butterfly valves inside the intake manifold. If this is the case, he can buy a single runner intake manifold like a Skunk 2. Then everything will be fine.
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