What sounds better a 40 series flowmaster or a 44?

The choice between a Flowmaster 40 Series and a 44 Series largely depends on your sound preference and intended use. The 40 Series is known for its aggressive tone and is often favored for a classic muscle car sound, while the 44 Series offers a deeper and slightly more refined sound, with less interior resonance. If you're looking for a louder and more pronounced bark, the 40 Series may be the better option; however, if you prefer a balance between sound and comfort, the 44 Series could be the way to go.