I have a 2013 SG and have installed 4" RC Component Slip-Ons. I am thinking about de-catting the head pipes for a little more sound. Will I need to get it re-mapped or tuned or will it be ok without that. Wifes getting mad cause I keep spending money on a bike that just cost us 20K+ (which i dont blame her)

 

You'll be fine without remap

 

You have to decide what your requirements are. The factory tune is very lean to comply with the EPA. Tuning will help any bike period. If you are just doing exhaust mods, you should be fine..The more air in and out, the more fuel needs to go with it. If you plan to continue intake, cams,ect. you will have to do it eventually.