91 Octane

CJ21

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All,

Does anyone know the gains in hp/t for RaceChip - Level 5? 91 octane is the highest available where I live, and I'm curious to know if the GTS Black is worth it given these circumstances.

Also, urban wisdom is that super high octane is bad at elevation. I live at 6,400 asl and always figured thats why we don't have 93+.

Any comments would be appreciated.
 
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