The real question is.... .... what do you want to hear the music from a ford v8 or the music from your radio. I could care less about bumpin a stereo so I put glass packs on everything, you can't go wrong with them, except for the paint burning off. Straight through is performance, some cars need backpressure, usually small motors that have trouble making low end torque. But not V8s you want to sound like a race car for next to nothing or you wanna sound mellow for a couple hundred dollars. Don't get me wrong flowmasters are built really well from quality metal, but only their race series has enough decibles for me. If you car is still to quiet with glasspacks you can alway get cutouts!!!
I like the Flowtech afterburners. Turned down at the rear they sound alot like flowmasters. With tailpipes they kinda sound like a Flowmaster & a Cherrybomb got together & had offspring. I like 'em on my 460 pickup, 2.5" duals all the way out the back.
