I'd do summitracing.com, part number WLK-24211 for the resonator replacement (perforated core glasspack, 35" length to reduce drone as much as possible). Then use FLO-942443, or something similar depending on where you want your inlet/outlet for the tips.

http://www.bnmotorsports.com "And I will strike down upon thee with great vengeance and furious anger those who attempt to poison and destroy my CEG brothers. And you will know I am the Moderator when I lay my vengeance upon you."