JDM S15 Spec S swap Spec R Engine Question
 

Hi Guys,
1- im a newbie in S15 and im planning to swap my Sr20de to a Sr20Det soon and my question is, do i need to replace my spec s entire wiring (engine, interior, etc) with the spec r wiring?
2- Will it be a complicated wiring swap?
3- The Sr20det halfcut also come with rear lsd and i wonder will direct fit my spec s? Or do i need to get the spec r rear driveshaft as well?
Thanks
https://cimg6.ibsrv.net/gimg/www.s-c...19817eecd1.jpg
https://cimg7.ibsrv.net/gimg/www.s-c...5c028411a9.jpg