Air Box Removal Kit for Bonneville & T100 / Thruxton 900 (2009-2016)

SKU: BC803-005
Sale price$350.75
Only 8 units left

Not legal for sale or use in California

California orders will be canceled learn more

If you're looking to unleash the full potential of your Triumph Modern Classic, the British Customs air box removal kit is a must-have. This simple upgrade allows you to ditch the restrictive factory air box in favor of two high-flow K&N air filters, for a significant boost in power and performance.

The British Customs Airbox Removal Kit

How does removing the air box increase performance? The OEM air box routes air intake through the stock snorkel (located underneath the left-hand side cover), which then flows through the restricted air box to the carburetors or throttle bodies. By removing the stock air box and installing two high-flow K&N filters directly onto the carburetors or throttle bodies, you'll ensure maximum airflow for optimal power and performance.

Whether you're hitting the open road or the race track, this easy upgrade will help you get the most out of your Triumph. So don't wait - make the switch today and experience the difference!


  • Increased airflow means more horsepower
  • Improved throttle response
  • Designed to work with or without side covers
  • Includes Jet Kit (*carbureted models only*)


  • 135 Main Jet (Qty 2)
  • 140 Main Jet (Qty 2)
  • 42 Pilot Jet (Qty 2)
  • Needle Shims (Qty 4)

Tuning Note: Airbox delete kits for carbureted models will come with a Jet Kit for rejetting, and a support brace (due to differences in manifolds on carbureted bikes).If your model is fuel-injected, we recommend getting your bike remapped. See our Tuning Guide for more details.

Note: If you're looking for the Battery Tray replacement alone, please view product here

Check out the tuning guide here for more information on tuning after installing the Air Box Removal Kit

Frequently Asked Questions


On orders over $399 (lower 48 states only)


Call 877-999-BRIT | 9am-5pm PST | Mon-Fri