does the cat effect the exhaust noise?

  1. Infrequent Poster Joined: Apr 2004 Cirencester United Kingdom (England) Posts: 215
    #1
    just got a backbox and wondered if the cat effects the exhaust noise?
  2. Frequent Poster Joined: Jan 2003 zwijndrecht Netherlands Posts: 733
    #2
    yes it will be louder
  3. Regular Poster Joined: Jan 2004 ankara Turkey Posts: 292
    #3
    it does make it louder but not much