I just got my new pacesetter long tubes in! They look awesome! But, now, installing them...I am deleting my o2 sensors, so what to do about the sensor openings on the headers? Also, I understand the installation directions entirely, but how do I torque the bolts to 24 ft. lbs? and also, it says to seal the headers and seals i guess with Permatex Ultra-Copper...how do I do that? Thanks guys!! I appreciate all your help with this!