You are probably looking at two different exhaust systems, on one truck I have B&B and on the other two trucks I have Corsa Touring, although there is almost no difference in their exhaust tip looks. I have had many Corsa systems on my Corvette's, you can not go wrong with Corsa, my 09' has Kook long tube header with Corsa Touring catback, I had Corsa on my 03' Escalade as well. Corsa holds up over time and has always sounded great.