I hit an all time high this week for MPG! I had been getting a max of 330ish range for the longest time... ever since I replaced my muffler with an aftermarket "performance" muffler.

I just hit 411 miles on a single tank and filled up 21.3 of 22 gallons!
That's 19.3 MPG!

Noted conditions/changes:
  • 91 octane gas
  • Unplugged battery to reset computer (following exhaust change)
  • Air up tires to 36 psi
  • Drive it like a Stick Shift
  • Highway primary, city moderate...


The biggest and immediate result was from the resetting of the computer. For those who have aftermarket exhausts and have not reset the computer... DO so! You'll be happy!