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Old 04-08-2009, 05:06 PM   #12
mikefocke
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Join Date: Aug 2005
Location: Sanford NC
Posts: 2,533
Not according to some testing

I've been advised of.

The Chinese headers available on eBay are good enough and don't cost an arm and a leg. But beware and use someone with experience in removing frozen bolts as it is easy to break off the bolts that attach the stock headers to the block. Use new bolts and anti-seize when you install the new headers.

This is a case where spending more for a part doesn't get you more performance.

You want to do the flash only after you've done all the intake and exhaust mods you are going to do and you want to do it with access to a dyno so the parameters can be optimized for your specific setup. You'll get a higher rev limit and a quicker response but it is amazing how good the recent Boxster ECU stock settings are. They even work well with enhanced displacement engines.
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