Originally Posted by Sbui
I'm tune with Cobb ap
Have you contacted Cobb about the bad mpg ?
When I was on Cobb's tune I got good mpg.
Something is not right.
Or contact my Tuner.
226,000miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. CHECK your oil, these cars use it.
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