07 sct x4

[Daiblo7212]

I have a 07 Eddie Bauer. All stock except new plugs and a set of accel coil packs for a mustang. I put the tuner on with the stock 87 tune. I turned the traction control off, speed limiter off, and bumped the Trans pressure up 10% across the board. Can you go above 10% without hurting anything and if so what will it help? Also I can turn the rear o2 sensors off. What's the purpose of turning them off? Thanks

 

[46L281GT]

The purpose of turning off rear o2s is if you want to remove the cats. That way it doesn't throw a CEL

 

[Daiblo7212]

That's what I was guessing. Just wasn't 100% sure. If I do remove them and turn them off will it affect mileage?

 

[46L281GT]

Nope. They only check catalytic efficiency