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Re: Which exhaust to go with
OP
muffler choice is subjective as what "I" like vs you may be different. With that said a chambered muffler like Flowmaster 40's is the old school classic muscle car sound if that's what you like. Downside is drone on Hwy can be loud.
Straight through mufflers like MagnaFlo and Dynomax where the inner straight through tube is perforated and wrapped in fiberglass give more a mellow note vs a chambered type of muffler
FlowMaster, wanting a piece of the straight through muffler market, has introduced the "FX" series which is a straight through type but slightly louder than MagnaFlo or Dynomax. I swapped my 40's for the FX ($49 on Amazon IIRC) and like the note with my 383.
3" dual exhaust is on the large side for an SBC unless you are making 500+ HP as you give up low end TQ for a few more HP in the high RPM (read over 5k) band. If doing OTA pipe behind mufflers dropping to 2 1/2" pipe is an alternative
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