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Jess Payn

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About Jess Payn

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    New Member

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  • Location
    Fort McMurray, Alberta
  • Drives
    2007 GMC Sierra Classic
  1. Hey guys, I have a 2007 GMC Sierra, basically completely stock besides the throttle body spacer I’ve thrown on. I picked up a superchips flash paq and I wanted to run the performance mod on it to see what it could do. Before I bought it I just recently stopped running 91 octane gas cause it was basically a waste of money for a stock truck, I was just using it to keep the engine clean since it was a well maintained truck. Before installing the mod it says that it needs 91 to run properly. So I was just wondering, before I waste the extra money in premium gas again, do I actually need the high octane gas for this mod or does it still work without it and if so will it cause any problems over time? Thanks in advance guys.

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