NOTE: This breather cannot be installed without reprogramming the PCM to compensate for the change in crankcase pressure. If installed without a chip, your vehicle will not run properly.......

Worked oh k on my Ranger.........?

 

will give you a SES light. I ran my L with the chip pulled and breather on for a little while and it seemed to run fine, but I haven't tried it for an extended period of time.

 

There is a trick.....

Install a 7/16 Ball Bearing between the PCV valve and the hose it goes into and it will be fine. Or at least thats what I was told to do and I read about it on here. I am going to get my 7/16 tomm!! Got the Oil Breather the other day...