HellsBells
620/677
I did the headers with a bunch of other things, but you will normally see 15-20 rwhp out of a setup like this. It completely changes the sounds of the car also because of the large primaries. Sounds deeper and meaner.
The install is pretty easy, just support the engine, remove the motor mount and it slips right in from the bottom.
Did you have to undo the steering rack? Remove the starter?