In my Chevelle I have a 3.6 liter engine with a 2.5” system, an X pipe and dual 2.5” in/out mufflers. The mufflers are 50 series Flowmasters.
71 442 Convertible
Thanks to Brian Trick, Steve Dembowski, Smitty, and Frank & Terry Trimble for their work on this car over the years!!