I'll need to check into that. This winter instead of putting my car away, I am going to truck it off for a mild cam upgrade and SC install. The Maggi is what most guys are going with. But overall it is very subdued. To me, there is no better sound than a Whippled 03-04 Cobra! Here is a video of the G8's sister, Vaxhaull. It will show you what I am looking for sound-wise. Heaven to the ears...... http://www.youtube.com/watch?v=BY6imlJ82VE&feature=related