Originally posted by brianl703:
How did you determine that your downstream O2 sensor is bad?
CEL, went to Autozone.
06 Mustang GT - stock
96 SE V6 5spd Midnight Red - 15.9 @ 86.8
150K miles
Mods: Bilstein struts, H&R springs, Borla Cat-Back, Brullen y-pipe, Gutted Precats, SVT UIM+LIM+TB, K&N FIPK, , DMD, Magnecor KV85
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