I have a 3" system on my Polara (Hooker Super Comp headers with hand fabbed mandrel X-pipe) using Flowmasters. The car is extremely quiet inside, outside well that is another story. At idle it has a great sound, when you first start it it has caused people to jump when they are not expecting it. If you want to hear what my exhaust sounds like got to youtube.com and search scatpack440, all the videos of the Polara are there as well as my 70 Super Bee that was a FULL TTI 3" set up with Magnaflows. Now that car sounded like a BEAST!!! >> >> The other 63 MW 'recreation' over here in the UK has a differnt system >> (possibly Accurate?) which I noticed the other week was a fair bit >> quiter, with no annoying resonance/drone. Those mufflers were longer >> than our Dynomaxs. >> >> Robert >> 63 Polara 500 >> England -- Steve '63 Hemi Polara ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! '62 to '65 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html.