86-91 Chev. Camaro / Pontiac Firebird, 5.0L / 5.7L, (W/2.50" Flanged Cat), 3.00" Outlets, 5.00" x 10.00" 80 Series Crossflow Muffler, 3.00" Logo Embossed Stainless Tips, Flowmaster American Thunder Exhaust System, DOR.

The Flowmaster Sound is the true tone of American muscle and performance. Available in a wide range of domestic and import applications for automobiles and trucks. Flowmaster mufflers produce more power than OEM and competitive after market products. What makes Flowmaster system so unique is that its performance improvement is paired with their unique tones. The "Flowmaster Sound" is offered in many different tones depending upon the muffler series. From the deep, aggressive tone of the 40 Series to a quiet and subtle, but unmistakably rich Flowmaster system tone of the 70 Series, you will find the right application of performance and sound you want

The D.O.R. system is designed for the person who wants that custom look of a dual system on a late model vehicle that came with a factory single. These system feature mandrel bent 16 gauge aluminized steel tubing, either weld-on or flanged inlet pipe/pipes, specially tuned muffler, clamps, hangers and stainless steel tips for that aggressive look and sound of a dual system.