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catalyticpeachmon1 01-29-2005, 12:27 AM 1994 Regal, is the catalytic good for the life of the car? Wondering for back pressure test. BIG-L 01-29-2005, 10:47 AM 1994 Regal, is the catalytic good for the life of the car? Wondering for back pressure test. No the arent. A good exhaust shop can test the flow of your converter.Ive heard a few car's with bad one's and they exhaust has a hissing sound and wount flow good out the tail pipe. ~Larry~ vBulletin®, Copyright ©2009, Jelsoft Enterprises Ltd.
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