super 40 series?

I hear many of you guys talking highly about the 40 series for the taco's and I was wondering if anyone knows the difference between the original 40 and the super or for that matter the delta's. Is there much of a difference?

 

i have the original 40, and i love it. it has a deep rumble, but to me, its relatively quiet on the interstate. i've heard the super 40 and super 44, not much of a difference there if you ask me. the super 44 may be a bit quieter, but im not really sure. as for the delta flow series, they sound good(40 and 50 series), but they are made to be a bit quieter in the cab than the original 40 or super 40/44. here is a sound clip of my original 40 series................

 

That was exactly what I wanted, a sound clip of the 40 thank you tacomaman. Your truck sounds great

 

no problemo sr5!!! anytime!!

 

if anyone has the super 40 could you post a video