| so it's quite a difference where you are at. fuel was 93 oct and it already had the ecu beforehand so no real comparison available. i have driven my buddy's NA and i could tell mine was a lot faster but he didn't have ecu, exhaust or UD pulleys so not a very good comparison. There is some good info on JWT's site about the ECU changes that are made with their upgrade, I would assume these carry over to most NA ECU's. [ http://www.jimwolftechnology.com/customer_part_detail.asp?PartID=249 ]
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