Quote:
Originally Posted by DOHCVTEC190
might watch your A/F ratio if you run open header. you might be running a lot leaner.
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What?
I think you mean your WB/O2 sensor will read leaner. Which is not a safe bet to do. You'll want to keep a very accurate monitor on that. IMO an open header isn't worth the risk of a bad O2 reading. Since I got my Greddy e-manage set up and sold my nitrious in favor for boost I'm kicking myself because I could have gotten so much more out of the Juice by retarding the timing and playing with the fuel mixture.
*Oh hey if you don't have a wide band O2 in there, opening the header to will let air in at idle and throw a CEL for and inproper )2 sensor, then the car will run like crap.