Like most of the guys on here w/the 2.7l's i was paranoid about getting a system for fear that it would sound like a damn rice burner honda thing. But anyways, i got a good referal to a Dynomax product called the Super Turbo muffler and tons of help from Akshunj and LavaBoy2(has a dynomax as well). It was rather inexpensive and similar to stock plus had the highest CFM flow rate of any of the ones i found. Decided to get it welded in with stock piping and figured if i didn't like it i'd chop a dump tube off the back of it. My first response while starting my truck up was, WTF did i just pay for, i can't tell a difference at all. I actually was quite happy at how subtle it was inside the cab. I also have a k&n fipk and the sound isn't loud enough to overtake that but it goes along nicely and lets me know it's there when i pull into higher rpm's but not annoyingly. It increased pull over 3500 rpms where the previous dead spot was and made low end torque feel a little more present. I'm not saying a huge diff. but it was noticable. It has no sort of rasp to it or tinny sound, it is wholesome and "beefy" sounding for a 4cyl and in no sense annoying or overwhelming to drive with. So imo go get one :welder: on yourself.