Just to add to your post JWB..I have heard the loudmouth on LT1's and LS1's and personally its abnoxious and unrefined.. Some like that.. $hit i drove around for 2 years w/ LT's and a cutout.. And i think it sounded better than a LM.. I wasn't sure what i was going to get when i bought my Mufflex System..I got the one w/ the dual outs and the spintech muff.. Alls i have to say is its a serious contender when it comes to sound quality.. Everywhere it sounds better.. No cackling noises or popping anymore.. Its smooth around town driving and when you hit it.. Sounds great.. The install was like anyother common exhaust issues.. getting everything lined up was the hardest part.. i haven't heard a corsa personally ..but i have heard they are one of if not the best sounding exhaust.. So.. Its a toss up between mine and the corsa.. I went w/ the bigger 4" just casue i'm tired of the cutout's..

 

Hey, I have looked at the Mufflex several times on thier site. I keep wondering what it would sound like on a LT1.

Would you happen to have a recording? I am very interested in cleaning up the sound of my car, but keeping flowing well also. The 4" system is very tempting.