Quote:
Originally Posted by Tahoe_Hybrid
the next update was 2015 which the front end changed 0.34 and smaller mirrors (these mirrors can be modified to fit on mine) but it's pricey at about 350$ for just that the 2019 might be slightly lower as they added air ducts
the biggest drag in the front is the mirrors, because of the size of them.
you can hear the wind dragging on them at about 75 or so
the only reason i'm able to get the good mpg is because i use 91oct as it's able to keep it in V4 mode much longer then 87oct ( it hyper switches from v8v4v8 i'm pretty sure that is bad for the engine i.e wear and tear wise to the AFM system )
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GM chose the V-8 for the Corvette to allow it to remain in the V-4 mode as well.A V-6 wouldn't cut it.I can see the octane issue.Ford's EcoBoost engines require premium when towing or heavy load.