It's for Hooker LT's on a LT1. It has the reducers with O2 bungs welded in (you will need O2 Extenders), each side is 2 1/2" pipe and it has a total of two Twister mufflers that tuck up into the tranny tunnel so there is no ground clearance issues. It exits on both sides of the car right before the rear tires. I am asking $300 (that is $100 less than cost) OBO. YOU HAVE TO HAVE HOOKER LT's on your car for this to bolt up. If you are interested we can meet up somewhere and you can see and hear it, it's still on the car. E-mail me if interested, I have no digital pictures but am willing to meet up somewhere.