Quote:
Originally posted by Jeff Cardwell
HiFlow5 0
I have a 91 Coupe with a 5.0 and AOD that currently has an H-pipe on the car. The only problem due to the fact that MAC h-pipe's must be for m/t, the passenger side O2 sensor mount must be relocated so that the O2 sensor can be installed without hitting the transmission. As I found out over a period of time the O2 sensor will break. Hope this helps.
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Humm, thats funny. I have a MAC o/r h-pipe and have never had a problem with it. As far as I know MAC only sells one h-pipe for both manual and auto.