I installed a 2 1/2" fully welded dynomax super turbo muffler with 2 1/4" pipe from the header back on my 22re. I have just a turn down after the muffler and it sounds like a v8 at low rpm's but once I hit about 3000rpm you can hear the squirels workin hard. Not quite "tuner fart pipe" loud but no v8 by any standards. I really like the sound it makes and dynomax stood behind there product when an internal baffle broke loose and was rattling. They sent me a brand new one with in a week.