The quietest straight through muffler I've found is Pypes race pro. Much quieter than Magnaflow and Ultra Flow.

Edit-carnut beat me to it, agreed smile

Last edited by INTMD8; 02/27/22 11:03 AM.
69 Charger. 438ci Gen2 hemi. Flex fuel. Holley HP efi. 650rwhp @7250 510rwtq @5700