can any1 give me the difference in performance and sound between original 40's and super 40's... doesnt super 40's give the car that guzziling sick sound if im not mistaken?

 

i had the original 40's on my car and i took then off. the interior noise was annoying.

 

didnt really answer my question, but ok

 

Super 40's utilize "Delta Force" technology which is an extra baffle in the muffler designed to reduce interior resonance and the well known 2k rpm drone. It also reduces sound levels and gives a slightly deeper tone. The Originals are the all out agressive ones.

 

dont you mean delta flow. delta force are flowmasters 1 chambered mufflers. delta flows are what is used in the 40 series american thunder cat back and the 50 series force II cat back for the stangs. but it does say that the super flows are molded in the race muffler case. but flowmaster says it is delta flow equipped.

 

Yeah your right, I was typing while leaving the computer at the same time.

 

I have the super 40's the sound great but they are a little bigger then regular 2 chamber I work at a muffler shop whem i put them in and i had to costum make my whole cat-back so the could fit. the right side is at a slight angle cause it was a little bigger that the regulars and i bottom out every now and then but they sound mean as hell with my o/r x pipe

 

The A/T catbacks for the 99+ GT come standard with Super 40 mufflers now.