I had my flowmasters taken off and put the dynomax bullets on today. These things are awesome! I felt more throttle response down low and up high. They are alot louder than the 40 series delta flows I had before. My truck sounds real mean now, I was turning everybody's head on the way home! Oh yeah, my cam stands out alot now at idle.

 

Sound clip?

 

yea arent those things badass. i thought they would sound like crap because i guess they are a glasspack, but they actually sound mild at part throttle and pretty loud at WOT.