wilb3
Full Access Member
I'm hoping for 2 mpg overall increase in my '05 Denali. I may be overly optimistic but we'll see.
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diehrd said:ya I highly doubt you will see that with just an air intake..A custom tune added to it and I am sure 2mpg would be reasonable
wilb3 said:Like I said, I'm being overly optimistic. You guys are right. I had an open airbox w/K&N and Flowmaster exhaust on my '95 Vette and barely got 2 more mpg. I may consider a tuning chip but for now gonna leave it alone. 3 kids makes $$$ mods more of a challenge nowadays.