Differences between a Catback and Muffler
06-23-2003, 11:29 PM
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well, a muffler is a part of a cat-back system. this is a term which refers to the section of the exhaust system it replaces: all of the tubing from the end of the main catalytic converter to the tips.
cat-backs are fairly ricey systems, which don't do too much to "open up" the exhaust system as much as a "header back" or "full" exhaust system, which may even include a mid-pipe to swap out the cat for those extra 1 or 2 ftlbs of torque at 7000rpm (pressure drop on modern catalytic converters is pretty small, and IMO definitly not worth taking out for 5 peak horsepower).
cat-backs are fairly ricey systems, which don't do too much to "open up" the exhaust system as much as a "header back" or "full" exhaust system, which may even include a mid-pipe to swap out the cat for those extra 1 or 2 ftlbs of torque at 7000rpm (pressure drop on modern catalytic converters is pretty small, and IMO definitly not worth taking out for 5 peak horsepower).
06-30-2003, 04:23 PM
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A "cat-back" system is what its name denotes. An after the cat to the back system. A muffler is part of it and is basically silences the exhaust note.
What wakeech pointed out is generally true, but not for forced induction engines.
What wakeech pointed out is generally true, but not for forced induction engines.
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