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      03-18-2011, 12:24 PM   #12
mfanatic325
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Drives: '01 911 Turbo
Join Date: Oct 2007
Location: Cupertino, CA.

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Quote:
Originally Posted by cmark8 View Post
I still have my CEL on because of cats... But it doesn't affect performance wise. Either way, by shutting off the CEL, you'll have to pay 200 bucks and you still won't pass smog here in CA. I kept the 200 bucks to myself to pay for the ridiculous gas price and the awesome 15mpg I get from this car (heavy footed).
yeah the header tune didn't seem to make a difference power-wise. I'm pretty sure they only turn off the secondary O2 sensors. What a rip. Good thing I didn't pay full retail price to begin with
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