which Borla muffler

For the TTI 2 1/2" exhaust to replace the dynomax that came with the kit. Obviously need the offset muffler, which the Borla does not force the spent gasses to swirl around the muffler like Dynomax. Has anyone swapped out the Dynomax for Borla's in their TTI exhaust, and if so what case size worked for direct bolt in?