ok that saves some $$$$ what are you running in your car.
last night i was at the local strip and i made one pass aginst a z28 that had flowmasters and a cold air he ran off and left me like i was standing still but i did spin all the way through 1st ,2nd and a little bit of 3rd. lets just put it this way i dont want to get bet by a chevy
Unless you're recalibrating for larger injectors are more duty from your injectors, there is no reason to touch the MAFS. Do yourself a favor --- put the money towards a dyno tune, and go somewhere where they can "recalibrate" your MAFS. Don't let them sell you a Pro-M or a C&L. You simply do not need aftermarket a MAFS. Actually, no one does. There are more economical ways to handle your air/fuel.
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