I'm about to take my truck to the muffler shop and was planning on using either the Flowmaster 50 SUV (524554)dual-in dual-out muffler w/2.25" pipes and is sort of flat/rectangular like standard mufflers, or a magnaflow (14568), which is oval, 2 in 2 out and 2.5" pipes.

Does anybody have any experience with these two different companies or suggestions about the choice?

Thanks!

'51 Chevy 1/2 ton w/'62 261, HEI, offy, fentons, dual carter/webbers, t-5 & 12 bolt posi