Quote:
Originally Posted by semtex
Wait, this thing is just from the Y-pipe back, isn't it? So they don't even replace the factory y-pipe?
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That's correct. They do mention, on one of their blogs, a header system to improve performance that they also show a picture of (a bit hard to see the entire header as it is installed and they are taking the photograph atop the engine bay); the factory Y pipe is most likely replaced in that situation, but with an aftermarket Y.