to get a good sound outside, without it being too loud inside get a
flowmaster 40 series, but get the delta force one. it is much quieter
inside than the original, but still the same outside the cab.
I had a Vortec system put on my 1998 1/2 ton Z71. Meineke sells and
installs them. They also have access to the mandrel bent pipes so it is
very free flowing. The system installed was cheaper than the do it yourself
kit from Flowmaster. I can tell a significant performance jump and the
sound is strong and mellow (doesn't have the popping). It was a dual in,
dual out muffler because I have two factory cats.
I'm happy with it, but everyone is different.
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