Follow the video for Ramair, that will help you remove everything. Installing the K&Ns are pretty simple, routing the AIT sensor is wherever you want to put it to get fresh air.
I went back to the graphs he posted, and didn't see any with the 4040s. As far as on a stock motor, I wound up with 167 hp with the 4040s, and Carp pipe. I didn't think the results were too shabby.
Make sure you tie the air intake sensor close to the K&N's so it can measure the air temp of what is entering the filters....this is important for the tune..
Make sure you tie the air intake sensor close to the K&N's so it can measure the air temp of what is entering the filters....this is important for the tune..