this data is from robs flow tests. say what you want but for me 146 cfm is a HUGE difference over the single. cheap it isnt but worth it.
stock srt6 intake = 446cfm
sl55 intake = 514
sl55 with devil horns = 531
single CAI with teflon = 602
dual CAI with teflon and big filters = 748
c3 is quite similar to the 178 but again i chose not to mess with the crankshaft in any way. the c3 is a flawless performer and capable of 19 psi boost
tune as you mod. you can tune a stock car and see a gain and then retune with each addition for free with e/c.
with 100* heat around the country you can heatsoak a stock car quickly. i did cooling mods before i did anything else. my iat's run 90 -100 * below engine temps atall times unless im wot and the they recover quickly