197/297 O2 sensor problems
I installed a Vortec supercharger,BBK long tube headers, BBk high flow cats, have a Brenspeed tune. Problem is I keep getting fault codes for both side O2 sensors saying there is a lean issue. I did add extensions to O2 sensors to move them out farther from exhaust flow. Anyone have any thoughts?
2009 GT 4.6, Vortech S/C; BBK long tube headers:BBK hi-flo cats, X pipe :F/R mufflers;Hurst short throw shifter; Cobalt gauges;3:73 gears;F/
R hi volume dual fuel pump, BBK fuel rails, BBK 62mm throttle body,F/R intake manifold, F/R springs lowered 2";18" Black machined Shelby wheels; Matte black stripes;Brenspeed performance tune:Shaker hood