Did this to my Bluto RL, short piece of cable to fix it in the open position. Then replaced the RL damper with the RCT3, big improvement.
You’ll need to download the rockshox parts catalogue for 2015 and it will list the part number for the RCT3 damper.
Wouldn’t surprise me of its the same one for the bluto and SID.
Edit not the same one:
Part no. 11.4015.544.290
Compression Damper, Motion Control DNA, Crown Adjust – Revelation RCT3 Black (includes compression knobs) A3 (2014-2016)
Part no. 11.4015.544.300
Compression Damper, Motion Control DNA, Crown Adjust – Revelation RCT3 Silver (includes compression knobs) A3 (2014-2016)