WUWU20

Hello all, thanks for having me. I will begin building a UCAR race car for the 2019 season and I need some info/help. I will be building a 2002 Civic EX Coupe 5sp, for the most part the engine must remain stock but I'm looking for info or sources for upgrades such as ECM/Chip, cam, throttle plates for the D17. I'm planning on changing to a JDM engine which I understand will increase HP from 127 to 140. Also looking for info on locking or limited slipping the diff without welding it. I have no desire to do a engine "swap" I want to work with what I have. Thanks!