aircare84

If you are installing the OBX's, put in the prothenes at the same time.
The clearance to the steering shaft is tight.
I waited with my LT install to try running with the stock mounts , installed the prothenes later anyway.

Got my O2 extenders from Brenspeed. The upper O2 sensors go into the header collectors & the rears are not used. You'll have to have the rears turned off in your tune or run MIL eliminators.

Good luck with your install.I used the supplied gaskets on mine, no leaks so far. Retorque the bolts after a run.