Hi All, Just installed 4g93 auto, but the problem is my top speed is only 160~170km/h, is it because of my gearbox or speed cut?...FYI i just realise the radiator tank of my new engines actually for 1.5 normal proton engine, i am afraid the half cut which i buy is not come with original parts og 4g93...is there any chance, the engine is using 1.6 or lesser cubic engine gear box?...please help...really need ur advice....or any suggestion for upgrade?
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