Have a co-worker who has an '03 CTD, and wants to upgrade his exhaust system. He asked if I know anyone who as ran the 5" Powerflow exhaust system that Grand Rock makes. I don't, but has anyone ran this system or know anyone of someone who has? How does it sound, easy to install? I suggested MBRP to him, but he is set on this system. Any info would be greatly appreciated so I can pass on the info. Thanks
Chris
Chris