I have a pair of 26" smithy's on my '50 plymouth flat six with a crossover pipe just ahead of the mufflers, 2 1/4" pipe from tube headers to the mufflers, 2" pipe the rest of the way back to the bumper. Nice tone, but I didn't want them loud for long distance road trips. Here's a sound clip: http://www.50plymouth.com/12-sou/rev2.mov And a few driving clips: http://www.dropshots.com/day.php?userid=18858&cdate=20050726&ctime=055512 Pete
Blueskies, Your car is fine as always. Has great tone out the back. Isn't it surprising when you stick a microphone under the hood and all you end up hearing is the valve gear and other moving parts? The mic is far more directional that our ears and brains which are more omnidirectional. I think a directional mic would be very helpful to diagnose engine noises while eliminating exhaust and any ambient sound. I happen to agree with you on the noise level for long distance. Subsonic sound is something your body works to resist and filter out. That resistance will leave you tired out after a long drive in a loud car.
Hey David are you sure the guy had smittys?They are not that loud. Also if you run your pipes that short they will sound different than the Impala.And I agree about no x Pipe, It also changes the sound. It all depends on the sound you are after, though. Chaco
I took my Smithy's off because they were too quiet when I got my car running. I replaced them with straight pipe and it sounds great now. I just hope it is not too loud when I start driving it.