Triumph Bonneville Sleeper Performance Package
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Triumph Bonneville Sleeper Performance Package

  |   British Customs


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Usually ships in 1-3 Business Days from our warehouse


Power and performance go hand-in-hand with how well your Hinckley Twin handles air and fuel. To give your Triumph Bonneville or Thruxton the free-breathing wake up it needs British Customs has assembled its best selling performance upgrades into one package.

Each product in this package has been designed and tested to work together perfectly to give you the best performance gain for your dollar. Combing the BC Air Injection Removal Kit, BC Airbox Removal Kit, British Customs Sleeper Exhaust and Jet Kit into a cost savings package allows you to get the power you want at the best possible price. This package saves money on labor and time by allowing you to install all three performance upgrades at the same time, transforming your beast in fell swoop.

Sleeper Silencer Features:

  • Deep, throaty sound
  • Stainless steel construction
  • Mechanical baffle (no repacking necessary)
Air Box Removal Kit Features:
  • Two high flowing K&N filters
  • Eliminates mounting brackets for mock air cleaner covers
  • Provides additional storage

Air Injection Removal Kit Features:
  • Eliminates air injection system
  • Reduces operating temperatures
  • Reduces blueing of headers
  • Decreases/eliminates popping during deceleration


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British Customs Seat Cowl Screw Set

British Customs Seat Cowl Screws

Sold Out! More expected to arrive on July 5th, 2013

Are you looking to easily change your seat cowl without reaching for your tool bag every time? Quickly remove your seat cowl without tools with the British Customs Seat Cowl Screw Set. British Customs has designed a quick release seat cowl screw, for quick removal of seat cowls on the Triumph Bonneville (equipped with a Thruxton Style Seat), Thruxton, Street Triple and Speed Triple.

The replacement seat cowl screws are manufactured from 6061 aluminum and anodized black. The Seat Cowl Screws are knurled for superior grip allowing them to be installed or removed without tools.


  • Removal of seal cowl without tools
  • Manufactured from 6061 aluminum
  • Anodized black to prevent oxidation
  • Knurled for superior grip