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garagelu · 03-09-2010, 08:50 AM

bad gas mileage. The only reason the power fc has the option to turn it off is because when you tune, you don't want the stock o2 to interfere while tuning.

03-09-2010, 08:50 AM	#3
garagelu Nissanaholic! Join Date: Aug 2005 Location: Atlanta, GA Age: 40 Posts: 1,856 Trader Rating: (60)	bad gas mileage. The only reason the power fc has the option to turn it off is because when you tune, you don't want the stock o2 to interfere while tuning. __________________ Instagram: @garagelu