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Just wondering If anyone with either the 5.7 or the 6.1 have run straight pipes from the cats back without any muffler or resonator? (Even if it was just for fun during the stock to catback change over.)
Interesting to know what issues this may bring with it (other then possible back pressure concerns) and how loud these hemi's can be.
Interesting to know what issues this may bring with it (other then possible back pressure concerns) and how loud these hemi's can be.