Reviewed By Barry C (Jacksonville, TX) Reviewed for a 2004 Cadillac SRX —7/10/2013 6:18 AM
My PT was tired. Engine light on constantly with P0420 code among others. Finally changed to Magnaflow direct fit cat, and replaced downstream O2 sensor. Car now runs better than new. Sound is incredible - sporty! Gas mileage has improved by 2mpg.