Well actually it is a little deeper under load but still sounds like a well engineered stock exhaust. The Resonator is huge so it's taking away most of the growl. I like it this was b/c it doesn't sound ricer and only has deep tone under hard accel. With the lightened crank pulley and delete I averaged ~37-38 mpg on the freeway and am holding my averages above 34 after returning to the street. This includes a few pulls to redline to see what she had--she didn't disappoint! ;-)The test pipe is on and the noise level did not go up. This exhaust looks easy to work on as it is flanged all over the place, great set up for aftermarket parts.