...new plugs & wires = putting things BACK to where they're SUPPOSED to be, which just gets you BACK to 100%-optimal efficiency...anything goes wrong and you're DOWN to less than optimal.
...count the LRR tires as ABOVE 100% because they weren't OEM on the car, they're a BONUS over that 100%-optimal benchmark.
...count the grill block as ABOVE too, if it works well enough (some changes are only subtle).
|