Like a previous poster said, the Walker Quiet Flow 21848 is no longer available. The replacement is a Sound FX 18230. This muffler is in the catalog for the B-Body 440 powered cars. I just picked up a pair for my Newport. They are 2.25" in/out, but they neck down inside the muffler to about 1.75". I'm not too keen on the restriction, so you may want to go with the Dynomax Hemi mufflers.
Last edited by bschargerse; 01/30/1410:10 PM.
Brian - 1971 Dodge Challenger "The Dodge, which was practically stock, just left the Mustang like you wouldn't believe."
