Quote:
Originally Posted by daman
^^ I'm pretty sure you need premium. Have you tried to put in 87? does it knock at all at WOT
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Not neccessarily, the ss/sc only requires 87 octane. It's about compression, not always FI. My 2.4 has higher compression than the ss/sc.
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2007 Cobalt SS/NA 
Performance:K&N short ram intake, Purple Hornies glasspack, Jet Stage 2
Visual: color match bowties, shorty antenna, blue footwell led's, partial debadge
Coming Soon:Vibrant 4-2-1 Header/DP
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