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Old 08-16-2009, 04:57 PM   #74
2K3_Boxster_S
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Join Date: Jun 2009
Location: VA
Posts: 221
Quote:
Originally Posted by cnavarro
Long term update - probably a solid 8,000 mi on a full NHP exhaust on our '99 with sport cats. Cats started throwing a CEL about 2,000 mi and had to add o2 sensor extensions to fix the CEL. After the last track weekend, there's a rattle somewhere in the tip or mufflers, looks like their heat shield is coming loose.

are the headers on the 99 the same as an 03? do you have 4 02's?
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