1988 GMC Sierra Exhaust?

[BigPIMPYY]

I have a 1988 GMC Sierra with a 5.7 liter 350 engine. The engine has some modifications, 2 inch throttle body, larger intake manifolds, performance fuel ignition, and cold air intake. It has about 365 horsepower. It has a nice sound, but I am not completely satisfied with it. I want put on pacesetter headers, two true duals, no cats because it doesn't have to go through emissions anymore.I'm a little confused about what muffler i want. I have three options, Flowmaster Super 44, Flowmaster Series 10, or glasspacks. The Flowmaster series 10 has the loudest sound and deepest rumble but if anyone has any expert advice it would be greatly appreciated,

Thank You

 

[Molson02536]

I have a 1988 GMC Sierra with a 5.7 liter 350 engine. The engine has some modifications, 2 inch throttle body, larger intake manifolds, performance fuel ignition, and cold air intake. It has about 365 horsepower. It has a nice sound, but I am not completely satisfied with it. I want put on pacesetter headers, two true duals, no cats because it doesn't have to go through emissions anymore.I'm a little confused about what muffler i want. I have three options, Flowmaster Super 44, Flowmaster Series 10, or glasspacks. The Flowmaster series 10 has the loudest sound and deepest rumble but if anyone has any expert advice it would be greatly appreciated,

Thank You

Stay away from the glass pack and go with the FLowmaster, 44 or 10 is your preference, but i would call them up and see what size i would need for a single exhaust, rather then a duel exhaust for better performance then a small diameter duel.

Most likely there going to say 3 inch single for your 5.7 engine or 2.25 inch for duels. The 3 inch would sound better and give better performance.