Thanks Mike T for recommending (in the Superchip area) that I get the "Jet Hot" ceramic process done to the Gibson headers that I'm dying to install on my 2001 4.6L SC Lariat. I will have that done. I plan to use the Gibson SS Catback exhaust system. Please clear up for me the purpose of the Y Tube connector. I want to be sure that I keep maximum low end torque.