Go with the OE plugs- same brand and type, you don't have to get them from a dealer.
A chip probably isn't the best idea.
A grille block is a good move, but you'll want a ScanGauge or UltraGauge (which you'll want anyway) to monitor your coolant temp.
Higher tire pressures, maybe an air dam. There are all sorts of mods to read about here.
Oh, and welcome to the party!
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Quote:
Originally Posted by sheepdog44
Transmission type Efficiency
Manual neutral engine off.100% @∞MPG <----- Fun Fact.
Manual 1:1 gear ratio .......98%
CVT belt ............................88%
Automatic .........................86%
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