I'd recommend seat time before any of those modifications. What tires did you go with?

 

I have 3 weeks off and it will be the only time off I have until next summer. It’s my only opportunity to work on the car at all. It’s not much different than the gmpp package. The exhaust is mostly because I don’t like the way it sounds and the new down pipe will allow me to add a wide band O2 to better monitor the engine. I ordered Bridgestone potenza RE-71RS.

 

Mild:
Front: 1.5deg camber, 8deg caster, 0 to slightly toe-in
Rear: 1.0deg camber, -4deg caster, 0 to slightly toe-in

Wild:
Front: 2.5deg camber, 8deg caster, 0 to slightly toe-in
Rear: 2.0deg camber, -4deg caster, 0 to slightly toe-out

Regardless of which you choose, if you are planning on changing your ride height at all I'd recommend you do that before you get an alignment, or you'll be paying for another alignment after you do so.

 

Thank you that’s exactly what I was looking for . I am looking at coilovers now if I get them I will wait to do the alignment.

 

When you say mild and wild, what will the feeling of driving the car be with those settings? I'm about to have an alignment done so this is very much info I'm looking for. What will each one do for tire wear/daily drivability?

 

Mild is a good street-setup for someone who wants a little more performance without sacrificing tire wear. The increase in tire wear will be fairly negligible. If you only street drive, you'll eventually burn out the inside edge of the tire, but even on a soft tire it'll probably take 15,000 miles or so to do so.

Wild is more autox specific. You're going to start to see diminished straight-line longitudinal grip (accel and braking) but with greater grip (including accel and brake) in the corners. Any rear toe-out situation is going to have a tendency for oversteer which is highly undesirable on the street, but will make the car turn in quicker than any other adjustment.

 

Like it's already been said, the GXP/Redline has a wideband already. I'm not sure about the base models.
That being said, I had a wideband O2 gauge so when I made my triple gauge pod cluster, I added it in there along with boost and an aeroforce interceptor.