Tuning a bone stock 2016 roadster...

IF you want max power replace the exhast with a light weight 3 to 1 10 lb CARP exhaust and the EXTREME K&N intake filters and a retune youll have 165 + HP and lose 40lbs for a big performance boost

Is that Extreme something new? If so, would you know if one is made that fits under the claw?
 
IF you want max power replace the exhast with a light weight 3 to 1 10 lb CARP exhaust and the EXTREME K&N intake filters and a retune youll have 165 + HP and lose 40lbs for a big performance boost
Sounds like a pretty nice way to start modding, what's the easiest, most common means to tuning for these changes?