Muffler question

In between Flow 40's,and Magnaflows. By choppy/throaty 40 standards,they don't have that "edgy"sound. They take out the high notes,bassiness low tones.The drone, between 1500 and 3000,is gone.Run x pipes,2.5 to 3.0 size,same sound. You might check out Dynomax Ultra Flo's,as well.