Im with the original poster. Im starting with a bone stock 04 reg cab. I know these trucks are supposed to have 505hp but it seems like the truck should be faster. I was going to go with a CAI and a new exhaust and get a sct with some custom tunes but as ive researched the forum ive learned that the CAI is basically useless for power and that the custom tunes are really for a quad cab? I do plan on removing the rear cats as i dont have emissions here in my part of TN but i dont have 1500-2500 to spend on headers right before christmas. I did see the list of mods with prices but i guess i want to know which ones are going to work best in conjunction with the others. Put it this way, if you had say $2500 to spend at the moment considering im spending another $2k on stereo but how is the best way to spend it for a daily driver street truck? Thanks in advance