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.





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





Flowmaster 40 series VS Flowmaster super 10
En una 99 Silverado v6, flowmaster 40 series vs flowmaster super 10, magnaflow





2016 Silverado Flowmaster Super 40 Exhaust
This is a 2016 Chevrolet Silverado LTZ 5.3L with a Flowmaster Super 40 series Exhaust. It has no hardly any drone.. Great sounding Exhaust but a little to quiet for me. I'll do a Flowmaster Super 44 video soon... Installed at Jeff's Quality Muffler & Quick Oil.. located in Oneonta, Alabama




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