I have the Calmini on my SE/SC. It was very simple to install. It looks great, nice SS tip. It sounds pretty good, a little deeper but not too loud. The hardest part was getting the old pipes off. I had to use a torch. Not really sure what performance gains from it because I also put the 2.3" over-drive pulley on the supercharger at the same time. It really moves now, gas milage sucks though!