proper

Hello,
I currently have a Reverse Y Pipe with Flow 40's. After listening to sound clips on youtube, it seems like 6er's with H pipes and American Thunders have a deeper tone?

Is there a difference between American Thunders and Flowmaster 40's in terms of sound quality?

Does H Pipe produce a noticeably deeper tone compared to a Y pipe?

AlloySixxer

H pipe will be deeper and is an actual "true" dual system. Not sure between the two mufflers.

BWfVA

Well I have the 40's with true duals, no cross pipe and shorty headers. They are plenty deep. The A/T on the 3.8 were really quite now I am not sure about our cars, I havent heard them but on Youtube but I wouldnt judge soley on that cause Youtube cant do justice for the 40's. Sure the 40's will let a little more a "wail" if you will at High RPMS but they atleast I would think they would be much deeper at Lower Rpms below about 3.5 grand or so. Just my take but I am biased

I would point you in the direction of a video clip but I havent heard one that is even remotely close to what they sound like in real life.