I was wondering if anyone had added a set of shorty headers to their Roush 427R. I called Roush and they said that not only does it void the warranty, headers won't do anything for the car as far as hp goes.I find it hard to believe that it wouldn't add hp and wondered if anyone had done it.
lol have they not seen the stock manifolds?! You could always throw some shorty's on and keep the stockers to swap them out if you ever had any warranty-related issues. And I would go with LT's personally, not that I'm biased or anything
Yeah, I thought they were kidding at first and I laughed; then I said, "Wait, you're being serious?" I know LT's would be the best but, living in California has so many stupid rules. I'll figured it out when I get back from deployment.