Quote:
Originally Posted by JFP in PA
Aftermarket tunes only really add marginal improvements, and then only with all the other mods (throttle body, plenum, headers, etc.) already done.
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The only mod that I was considering was the underdrive pulley, it seems to add the most power for the money, but after some research I see some people are against it, including yourself. I do have a K&N free flow filter, I just took it out a few weeks ago to clean it. If it adds a couple of horsepower or not I don't really know, but it sounds nice.
2001 Porsche Boxster
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