New Performance parts!!

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#11

06-26-2011, 05:32 PM

Hahns5.2

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Quote:

Originally Posted by Rabid21

Bit of a thread necro here and for that I apologize.

But do those Rocker arms effect gas mileage at all?

No, if anything I noticed a slight increase, you're increasing valve lift (air flow) along with reducing friction.

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