I currently have a K20A2 in my car with the stock EP3 exhaust from headers to end of cat, Skunk 2 cat-back exhaust. The pipe that connects the headers to the catalytic converter was rigged so it would fit the current position of the EP3 exhaust. Piece of pipe was welded. What can I buy to get rid of this and make the exhaust "solid" instead of having it rigged? Please help I want the swap to be proper.