Agreed!!
Grab 4AGE 20v Headers And You Are A Happy Man....!!
Keep In Mind That If You Only Bought Headers...You Need To Get Your Downpipe Modified A/c To Its Location+ Flange....
Thats Good If You Get Whole 4-2-1 Piece As Shows In Pics 1 and 2
This Sensor Is 02 Sensor......! Oxygen Sensor Its Also Called...!! Tells ECU Engine Running Lean Or Rich And Helps In Maintaining Perfect Fuel Ratios...!!