Well I am going to have to disagree on this topic. I installed a Granatelli MAF sensor and Airaid Throttle body space along with K&N airfilter and I saw increased mpg and better acceleration. Then I installed the Hypertech and saw nice gains. You will not see any amazing HP or torque but you will notice a little better fuel economy. All in all not really worth the money, but I did have them installed and you can find that stuff on ebay pretty cheap these days. Oh and the throttle body spacer sounds cool too.
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