I've been shopping around for a Borla cat-back (not stinger) lately because once tax refund is filed, that baby is getting ordered. Anyways, my question to you geniuses. I see many different pics, and the tips look different on some. Some appear to have a tip with an "insert"....from the back you see two layers of metal. Some seem to be rolled....and others say its a 4" tip, but it doesn't look rolled. Anyone have a clue what the Borla cat-back tips really look like and how large is the diameter??? Some examples of what I'm seeing.
http://www.rpmoutlet.com/musv8borla.htm
http://www.borla.com/applications/l...TT-304_Stainless_Steel_Cat-Back_System/14834/
http://www.rpmoutlet.com/musv8borla.htm
http://www.borla.com/applications/l...TT-304_Stainless_Steel_Cat-Back_System/14834/