What should I expect?
If I changed it out with Pacesetter LT Headers and TSP Rumbler w/ Bullet duals, how much louder would it be?
How much quieter is the Spirals vs the Bullets?
let me put it this way, with 4.11s going 75mph on the highway (2100rpm) i had my radio's volume at 28 with a max being 34, and this just made it loud enough to comfortably listen to music (stock speakers)
hope this helps

