SKU: BC-803-025



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The better your Triumph breathes, the better it performs. Its just that simple. With the British Customs Air Box Elimination Kit you can remove the restrictions inherent with the OEM air box and snorkel configuration and open up the fuel system with a free breathing K&N cone filter. Dollar for dollar, this is the best performance upgrade you can get for your Triumph Thunderbird, helping punch things up a healthy 12.7hp*.

Simply scrapping your stock air box doesn’t work – it also serves as the mounting point for some pretty important equipment like your relays, fuses, solenoid and rear master cylinder. British Customs reengineered an entirely new air intake system, complete with a new battery box design that provides all those essential mounting points.

The battery box is made of lightweight aluminum with wrinkle powder coat finish for durability. All brackets, hardware and fastening points for reinstallation of stock components are included, right where you need them.

Note: Laws regulating motorcycles and motorcycle modification vary between states, provinces and municipalities. It is the rider’s responsibility to understand and comply with local laws. The manufacturer and retailer assume no responsibility for any use or application of this product in violation of any applicable law. *The above power increases were generated using a complete engine package consisting of the British Customs Airbox Elimination Kit, British Customs Thunderbird Predator Exhaust, and a DynoJet Power Commander.

Note: You must install a DynoJet Power Commander V. When installing this upgrade, tuning is required and installation of hi flow exhaust is highly recommended.


  • Increased performance for the thunderbird 1600 and Storm
  • BC Battery Box manufactured from Aluminum
  • Durable textured black powdercoat finish
  • High flow K&N filter
  • Custom power commander Maps available for download

Fitment: Thunderbird 1600 & Storm models

Does not fit with Thunderbird LT or Commander


Add Power Commander Here


SKU BC-803-025


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