Hey guys! Been reading threads and got a lot to learn. Thank you people. I just wanted to learn more about air intake filters. I wanted to add on a good exhaust system like borla or flowmaster. What kinda intake would i need for better mpg and performance? Go for cold air intake? If so, what brand? My mechanic said he'd get me one for $70. I was like great, but I'd still wanna learn what's going on with my rolla boy. Suggestions and comments are welcomed. Thanks.