So I have an MBRP 4" turbo back coming in the mail. Yay! I noticed in the picture that it appears to have a one piece downpipe. Is there anything special I need to do to remove the old one and install the new one? I don't own a lift and was wondering if it's easy to install from the bottom up if the truck is sitting on the ground, or would jacking it up a bit help? Thanks!