Well I looked in the "how to" sticky section, and I was suprised to find that no one had written up an install of a cali-spec y-pipe. My only question is really, do you need a special tool to remove the two oxygen sensors on the stock y-pipe? I have finally bitten the bullet and decided to get a y-pipe for a good performance increase. Any insight will be helpful, thank you.

 

you can remove them with just a normal wrench. mine where in there really tight and hard to reach to really turn it hard. so i actually unplugged the harnesses and removed the stock pipe with the sensors still in. then was able to get the sensors out.

 

so soonerfan, you just used a regular open-end box wrench? What size did you use, do you remember?