I'm in the process of installing KOOKS LTs on my car. I have a pair of 02 sims that I have to put it. My question is, what did you guys use for your rear 02 bungs. I'm going to use my stock 02 sensors in front of the cats, and sims after. Did you guys use some 7/8 block offs for the rear bungs? What's the best way to go about this. The more I thought about the sim situation, the more confused I got (you know that feeling)

My other question is, what did you guys use for heat shields? I bought some Taylor Thundervolt wires, but the heat in that area is pretty intense. Do most people just leave them off, or fabricate up some sheilds? Thanks for the help guys, install will be finished tomorrow

Rob

 

I just used the stock O2 sensors as plugs for the rear bungs.

 

There are also "plugs" that are made for closing those off.