This is geared for the LS4 454 guys..... what exhaust do you have and how do you like the sound?

i went with the stock system from cc. i almost went with the magna flows but i was afraid it might be too loud, you can hear a demo on cc site.

yeah, i saw / heard the demo, but dont know if its a small block or fat block

I have always liked the chambered sound, but it might be too much on a 454.

I meant to say loud, but, I must have been loaded.........not.

Mine are stock too and I think it's just enuf...  no-one else has ever driven it so I can't say how it sounds from outside the car, but with the top down I think it sounds OK... I have enuf noise with the top down...  I'll put my $$$ into something important... like gas maybe...

James, Im not sure how far you are from the Trenton area...  I'd give Denny at Mufflex a call.  They custom PERFECTLY mandrel bend exhausts and can tailor to any sound you like.  They did my car from the mani's back.  Its show quality, EXACTLY what I wanted and reasonably priced.  ALl done on a Saturday while you wait...

The stock mufflers just seem to make a lot of backpressure... the car just does not sound like its breathing very well at when cruising, you can barely hear it running.....

I had MagnaFlows and at 30 mph I couldn't hear a jet plane if it was landing on me. The harmonics were terrible. I put in a crossover pipe which helped some but I still couldn't hear the radio. I bought a complete stock system from Corvette Central and the supposed Mandrel bent pipes were anything but and they wouldn't take them back. I tried them and didn't care for the saound at all. I now have a set of SS sidepipes from EBay and am a happy camper. There's some back pressure on these but they sound just right. No harmonics in the corkpit. And with a 454, who cares about a little back pressure? It'll still break your neck if you stomp on it.