Hi, I am trying yo decide on a body kit. The 2 that I really like are saleen and roush. Problem is that I like the roush front bumber a lot more than the saleen. I would go with roush if I knew that I could modify my bassani cat back to work with the side exhaust. According to roush they say you cannot make other exhaust systems work. Is that true? I find that hard to believe. Has anyone mixed body kits with the roush bumper? Any ideas, opinions, or pics would be appreciated. Thanks