It does next to nothing for a normal car. The air you breathe is 78% nitrogen. Nitrogen is used in race cars because pure nitrogen is more stable than regular air. So they can get very very precise in their tire pressures. Nitrogen in tires is a way for tire shops to make money off people who don't know any better.

 

With the frigid cold temps we've had this Winter, I have not had my low tire presser light come on since I put nitrogen in tires. It happen 2x before I put nitrogen in.

You can still air down, you'll just lose the nitrogen you paid to put in it. If you wheel a lot, just wait til Winter to put nitrogen in your tires.

 

Half doors and windows out. You have to love living in FL. Also finally installed my coil retainers and cleaned the wife's Tahoe throttle body. Good productive day

 

What rear bumper is that and how is it holding up? Creeks, squeaks, finish, rust? Thanks

 

Finally completed my first modification to the jeep this weekend. Installed the Poison Spyder hood louver.
Next weekend will be a TeraFlex 2.5" coil lift.

 

Love the looks of that hood

 

How hard was the install? Did you do a write up on it?

 

The written instructions are hard to follow, the teraflex video is much better.

 

Cool thanks.... It's -10 right now, so it's going to be a bit till I get them put on.

 

It wasn't to bad, took a little longer than I had hoped. I removed the hood and had to work on the floor, no real workspace at my house. Using the angle grinder to cut the holes in the hood was the most stressful for me. Never used one before, and it was really easy to cut through the hood and bracing underneath. Also when you are doing the final installation don't tighten the bolts to tight, really easy to deform the hood and make it look wavy.
I have read of guys installing this in 3 to 6 hours, I could see that if you had experience with the angle grinder and had a proper work bench to work on. Mine took so long, my wife had to drive the Jeep to the store with no hood. She was not happy.