Quote:
Originally Posted by TacoWillie
So 07 Firecrew,
Would it have be just as well performance wise to do one of the following?
1. Just replace the restrictive OEM muffler with a Flowmaster 70 Series
with the OEM tailpipe and resonator
2. Replace the OEM muffler/resonator/tailpipe with a Flowmaster 70 and
a 2.25" or 2.5" tailpipe. I like the throaty sound...
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I wouldn't install anything smaller than a 2 3/4" tailpipe on the 5.7 it would likely be to restrictive. On a 4.7 you would but not the 5.7.