Hi, i am wondering if anyone ever tried add on a cone style intake on their rig? How is it compared to the stock box? All the intake system claims to add extra power and torque and better fuel mileage too. I care less about power and torque, but i want better fuel mileage, so if anyone ever put one how, did it make a difference? thanks

http://isuzufaq.ibctech.ca/#faq49