Have a few items from my GS SI. All parts should fit all 2017-2020 Si’s. I’m willing to ship at buyers expense but prefer local pickup in Orange City, FL (32763)
$75 - porterfield R4S autox pads. Barely have any wear after ~15k miles. 16mm of thickness with a 5mm backplate.
$125 - Gloc R12...
Have a Ktuner v1.2 with 4 TSP tunes for it. Stage 1 and Stage 2 for both stock MAF and Race MAF for a 2019 SI.
Asking $375 picked up in CFL or Plus Shipping/PP