I'm getting my new mufflers welded in tomrrow morning, and i'm going to install the off road h pipe with my dad saturday morning. I've got the stock exhaust right now. Any tips or pointers, i'm going to spray with penatrating oil, jack the front of the car up, probably take an impact wrench to the header to h pipe bolts, drop it, and hopefully i wont have any problems installing the new one.