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  1. DIY
    Man, this is some TOP SECRET shit. I had to dig deep to find this out, the only reason I'm sharing this is to give the edge to all 7th gen v6 users. The compression ratio of the j30a4 (7th gen coupe V6 6-speed) is 10:1 which is high enough for 93 octane gas and according to a japanese dude who...
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