Hooker Maxflows.

My Regal
Video of No tip exhaust - Photobucket - Video and Image Hosting

It will get quieter with a tip on. LOL. Right now it is exiting onto the bumper causing some nice bass sound effect.

A cammed GTP
YouTube - idle with new mufflers

Said it got a tad louder after a day or 2.

YouTube - idleafterbreakin

Those were my old Maxflows FWIW. Had em on my car for 3 years.