Turbosolara wrote:pretty sure it is not CARB legal because it is missing a cat...but it unlesh you some hp
It usually comes with a High flow cat to replace the OEM cat, so the center pipe might be measured to hook up to OEM cat. Its not CARB legal because I dont think they got it tested, but only you Cali guys have to worry about that. I know you need the sticker out in Cali, I have no idea about other states - Sound and emissions are probably whats measured to pass or not, and I don't know about that part.
And also, I read up a little, downpipe is one with the center section - its only two pipes.
Im not sure if the centerpipe to cat part is straight bolt on. WIth the high flow it normally comes with, it needs to be welded because it doesnt have the flanges, but not sure how it would mate to OEM cat, if it does mate that way. Its hard to picture since I cant find any pictures of what the high flow cat looks like.