Originally posted by ZetecRacing:
Originally posted by fst4dr:
I dont think the zetec has a problem with rasp AFAIK. They seem to sound good no matter what muffler you put on, or with no muffler at all.




hate to tell you but your wrong... my car had rasp when I had my old exaust when I had no res and a dynomax muffler at the end where the stock muffler was.




This makes sense to me...it is my understanding that (with SVT dual type set up) as the flow passes through the main CAT it casuses turbulence through the rest of the piping which manifests itself as rasp as it comes out of the mufflers.


But Eliminating the end mufflers and puting one inplace of the resonator, becasue it is so close to the cat, and the space between the muffler and cat is so close, that there isn;t enough space to produce the rasp (or Turbulence) so you get crisp engine sound....

not thats my understanding.....Its probably way worng knowing my luck...but its the only logical situation I can see....Can anyone else elaborate on this.

3.0 SVT hybrid...all the fixens...Track/Race ready very soon!!!!!! 20,000 + miles