So right now I have a 70series Flowmaster, and Im not very impressed with the sound and power from it. I want an exhaust thats nice and throaty like a 40series flowmaster, but from what I hear Flowmasters airflow is a lot lower than other exhaust systems. So...which exhaust will give me more flow, power, not suck gas, and give me that mean sound of a 40 series?

1991 Ford F250
V8, 7.5L 460

 

Try Spintech, they are supposed to flow alot and have a bit of a unique sound, maybe not as loud as Flow's but for you're 460, it needs to breath alot. Maybe even a custom setup?

 

14" Magnaflow muffler