Triumph Bonneville Predator Exhaust
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Triumph Bonneville Predator Exhaust

  |   British Customs


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Triumph Bonneville Predator Exhaust

Looking to add sound and performance to your Triumph Bonneville? British Customs developed one of the first slip on exhaust for the Triumph Bonneville. The Predators use a reverse cone design for a look synonymous with Triumph's of the 60s and 70s, and coupled it with modern internals. This sound and style has made the British Customs Predator Exhausts the most talked about exhausts on the TriumphRAT forums (Rider Association of Triumph).

The Predator exhaust uses BC exclusive steel louver core baffle (mechanical baffle) that requires no repacking and produce a nostalgic deep bass sound while increasing  horsepower (+3-5 hp). For superior weather resistance, each silencer is manufactured from 14 gauge stainless steel, all welds grounded off, and finally polished to a show quality mirror finish, also available in ceramic black.

For EFI models, British Customs worked with Dynojet to create the first fuel injection maps for the Triumph Twins (Bonneville & Thruxton). Maps designed for BC slip-on exhausts and Air Box Removal Kits are available on the Dynojet website. Other tuning options include TuneBoy or factory Triumph Tuning. For carb models, BC has developed and included a recommended jet kit.


  • Manufactured from 14 gauge stainless steel
  • Available in polished mirror finish or ceramic coated black finish
  • Mechanical baffle that requires no repacking
  • Includes side stand and center stand bracket
  • Stainless steel mounting hardware included
  • Exclusive maps from Dynojet and British Customs available with Dynojet Power Commander (EFI models only)
  • Jet kit includes 135, 140, and 42 pilots (Carbureted Models Only)
  • Custom jetting requests available
  • Increased horsepower (+3-5 hp)
  • Bolt on installation without modification
  • Superior weather resistance
  • One piece seamless design
  • Made in the USA

Important Notice: British Customs recommends rejetting/ remapping your motorcycle immediately after installation for the best performance. If the motorcycle is not configured properly it may run too lean and can cause damage to the engine. Consult with your local Triumph technician for the best tuning options for your motorcycle.


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