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Thread: '99 Optimax 135
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07-03-2008, 09:57 AM #1New Member
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'99 Optimax 135
Is it possible to replace this ECU with a 150 or 175 Opti ECU to up the HP of this 2.5L motor? I like my 135 but would love if it was a 175. I've seen similar posts about replacing/reprogramming of ECU's for the 3.0L Opti - but haven't seen much info on the 2.5L.