UST Series

The UST has been specifically designed for minimal space, and for smaller engine bays as car engines continue to become more compact than ever. The ultra-compact mini UST comes with modified slot and improved sound levels.

Tube Option
Part Number


  • Full UST kit includes Whelen SD210R speaker
  • Rubber tubing and aluminium flare tube
  • Standard hose
  • Standard or Mini tube options
  • 100-watt speaker compatibility

Additional information

Tube Option

Standard UST, Mini UST

Part Number


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