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Old 01-27-2005, 09:46 PM   #4
powerlabs
Scooby Specialist
 
Member#: 45790
Join Date: Oct 2003
Chapter/Region: Tri-State
Location: New Jersey
Vehicle:
2006 Corvette C6 Z51
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I bought a very similar intake from Rallitek for my '99 RS a year ago:

Besides being the loudest thing I've ever heard under my hood, it also caused the engine to lean out a LOT. So much, in fact, that at 5500RPM the ECU would force a fuel cut as though I had hit redline. I ended up having to buy and install an S-AFC and run the following air/fuel correction curve:

(notice 21% extra fuel at redline). Then it made what seemed like some extra power, but I ended up selling it and installing an Injen. I'm more satisfied with its sound and it does not lean out the car as much, though its still around 11% extra fuel at redline.
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