what is the deepest sounding muffler ?????
Newbie
Joined: May 2011
Posts: 23
Likes: 0
From: Morgantown, WV
Year: 95 and 93 Sport
Model: Cherokee
Engine: 4.0 HO
Seeing as how Flowmaster let the patent expire on their 40 series muffler, there are literally hundreds of great copies. I recommend a Thunderbolt all welded muffler. Great sound. We sell the hell out of them.
CF Veteran
Joined: Sep 2010
Posts: 1,992
Likes: 0
From: West Bloomfield,MI
Year: 1996
Model: Cherokee
Engine: 4.0L, CAI, Edelbrock Breather, Optima Yellowtop
I have a flowmaster 40 with 2.5 inch pipe and dual exits. Its probably the deepest sound you'll get out of the 4.0
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