Simpson Pivot Kit - SA2010 Voyager Helmets Vehicle Model_Civic Si the 353 Steering Wheel does

the 353 Steering Wheel does not offer any built-in horn controls

Designed to be used together with the Brey Krause R-922x line of Side Mount Adapters

The AIM RPM Bridge is designed to be used with the AIM SmartyCam Video Recorder/Data Logger to allow a vehicle's RPM overlay on the SmartyCam video

You could remove the rubber fill plug on the gauge

but they are designed and tested to have the belts mounted above them

Simpson Pivot Kit - SA2010 Voyager Helmets Vehicle Model_Civic Si the 353 Steering Wheel doesThe Simpson 99022 Pivot Kit fits many of the Voyager line of helmets (see list below). Includes two retention detent washers and two shield pivot screws & surrounds. For best results, replace your pivot kit when replacing your shield.