i'm not going to run bigger than 31's for a few years. I fell into these tires as it was. and I just had enough stuff for a homemade lift around the house. thanks for the info, was it in 4cyl stick xj's? what axles did those come in?

 

If you can find axles out of a 4 cyl XJ, they are 4:10's. I think as far as performance on mine, the exhaust was the best. None of them though were drastic. As far as a open air filter, unless you build a heat shield for it you will get more hot air in the engine then cold which kinda defeats the purpose. I went back to the stock box and a drop in K&N.