Flowmaster Super 40 vs Super 44?

This is my Silverado. I am debating installing the Super 40's or the Super 44's. What do you think? The engine is a 86-95 350ci block, four bolt mains, roller cam. Bored .040" ZZ4 rotating assembly, Speed Pro H345NCP-40 pistons 10.7:1 static compression, .032" Quench/Squish height. Patriot 'Vortec' 185cc heads, 2.02"/1.6" valves, Beehive springs. Comp XR276HR-10 cam, 1.52 rockers. Air-Gap dual plane, 1" four hole tapered spacer, Mighty Demon 750cfm annular Boosters. MSD ignition, Summit dist dialed in for 36 degrees @ 3000rpm. 18 degrees initial. +12 vacuum advance on manifold vacuum.

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Flowmaster 40 series vs Super 10's
1989 K5 Blazer, stock tbi 350, Hedman 69230 headers, 2 1/2'' true dual Flowmaster American thunder 40 series with 15'' long 3 1/2'' tips. vs 2 1/2'' true dual Flowmaster Super 10's with 18'' long 3 1/2'' tips.

Flowmaster Super 40 Series Muffler Sound Test
Buy here: http://www.speedwaymotors.com/search.html?query=flowmaster+super+40 Testing the Flowmaster Super 40 Series Muffler on a 1972 Chevy El Camino SS.

04 Silverado 5.3 Flowmaster Super 44. Dual Exhaust!
via YouTube Capture

How to Select the Right Flowmaster Muffler for your Vehicle - Series Differences Explained
Questions? Give us a call (707) 544-4761 View these products: http://bit.ly/1Nq0cDi Visit the Flowmaster website: http://bit.ly/1fyGZRh “Which Flowmaster muffler is right for my car?" Because Flowmaster offers over a dozen different series of street mufflers, the answer to this question will vary depending on the make, model and performance needs of your vehicle, your personal sound preferences, budget, etc. To help narrow down your choices, Summit Racing Equipment spoke with Flowmaster's VP of Sales, Alex Ortega, to give you a better idea of what to expect from each series of Flowmaster muffler. For more info visit, www.flowmastermufflers.com or contact our tech line at 707-544-4761. Follow Flowmaster on Instagram: http://bit.ly/1LsFNvT For updates and new product releases, ‘LIKE’ us on Facebook: http://on.fb.me/1K955xg Follow Flowmaster on Twitter: http://bit.ly/1FBjnAu Subscribe to our Youtube channel: http://bit.ly/1RuFMGB