Hi all. Haven't posted in a while BUT BEEN READING! I have a few questions and curious of opinions for my latest Mopar. I have a 2012 RT 6spd. car. So far, I bought the DiabloSport InTune 1000-DCX. I used the canned 93 octane tune (DiabloSport tune), then moved rev limiter up to 6350, added 5% more fuel at WOT across entire rpm range, of course moved speed limiter from 169-190mph (lol), and moved the throttle sensitivity b/c of fly by wire to MAX. I did the WOT, throttle response, rev limiter mods due to posting from others (I also removed/replaced the #2 fuse, some say helpful, some say does nothing, figured can't hurt). The only other current mod is a k&N CAI. (and yes, I realize its not a true CAI, and the K&N is not the best choice but figured better than stock w/silencing baffle, especially when I add the functional shaker setup from suncoast creaations, which will seal to the top). Curious on thoughts concerning the manual mods I made in addition to the canned tune. (The car REALLY picked up some (don't wanna just GUESS number) power, as evidenced by 0-60 timer, how fast I go from launch to 3rd, the amt of wheel hop in 3rd, etc. Any advice/thoughts welcomed. I also am going to order the 180 degree thermostat, and curious if lowering fan settings 20% a good idea as I have read to do thru all parameters once thermostat installed. (also not sure why this would matter, since car has electric fans, unlike an old car...sorry if this question seems stupid) LASTLY, header advice? I don't have to worry about a sniffer test where I live, and was considering Stainless Works (GREAT results in previous cars I've owned) 1 7/8 long tubes w/ off road pipes? Thoughts and/or suggestions? Oh yeah, since I don't plan on MAJORLY modding the engine (no heads, blower, etc.), do you think there will be much performance differences b/t 1 5/8 and 1 7/8 long tube headers? (I ask b/c seems all 1 7/8 nearly DOUBLE the cost of various 1 5/8) If so, ballpark power difference? I know long tube vs. shorty headers can be significant, but wasn't sure about the primary size in my application. Thanks in advance for the comments/thoughts/opinions!!! Hope everyone is having a great new year so far!!