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		986 Forum - The Community for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Performance and Technical Chat
ecu and exhaust upgrades

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12-14-2004, 07:15 PM	#1
Lux Registered User Join Date: Aug 2004 Location: Bay Area, CA Posts: 401	I thought GIAC allows you to custom tune? Regardless, a custom tune on the dyno (with the a/f sensor mounted before cats) is the only way to go. I've seen too many aftermarket chips (for BMW) that are too lean up top or pig rich down low and everything in between. I'm guessing the chips for Porsche aren't much better. __________________ http://img106.exs.cx/img106/9969/sig129zs.jpg

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