The Sleeper Pro Exhaust pipes are fabricated using 100% 304 Stainless Steel and are styled after the classic Triumph Exhaust of the 1960's. The high-performance mufflers feature our maintenance free Louvered Baffle system and are mounted with rubber bushings to isolate engine vibration and significantly reduces bracket fatigue, extending the longevity of your investment. Each system is handcrafted and TIG welded for the specific application. Installation is quick and easy for a bolt-on factory fit and finish. To match the factory headers on the carbureted Bonneville, they are Polished by hand and individually inspected prior to packaging.
- Free Flowing Exhaust to Increased horsepower
- Over 2 pounds lighter than stock mufflers
- Classic Triumph exhaust tone
- 304 Stainless Steel for durability and quality
- Compatible with a center stand
- Made in the USA
To get the maximum Performance upgrade on your Fuel Injected Bonneville, British Customs recommends that you install our Air Box Removal Kit and Air Injection Removal Kit alongside the Sleeper Pro Exhaust. These products are designed to increase the air intake into your motor and allow for the proper running temperature. To ensure an ideal fuel/air mixture you should Re-Map your bike. If you are not comfortable with this installation please see your local Triumph dealer or call our team of Product Specialists toll-free at +1 (877) 999-BRIT.
PLEASE NOTE: THIS IS AN EXACT FIT PART
|Part Number||Model Fitment|
|BC902-121-P||2001-2010 Triumph Bonneville T100 (VIN < 437492)|
|BC902-122-P||2011-2016 Triumph Bonneville T100 (VIN > 437493|
Special Notice: There was a mid-year change to the headers of the Bonneville EFI during the model year 2010. Due to this, we offer two versions. Be certain to select the proper VIN range for your model from the drop-down menu above prior to Adding the item to cart. The VIN is located on the Headstock of the frame between the upper and lower triple clamps. This refers to the last 6 digits of your VIN.
To clarify, this product will not fit the "Liquid Cooled" Bonneville T100. If you are looking for Predator Pro for that model, visit this page. If you are not certain which model you have please contact us.
- Left and Right Sleeper Pro Slip-on Exhausts
- (2) Stainless Band Clamps
- (2) Rubber Inserts
- (4) Stainless Steel Mounting Spacers
Q: Do I need to remap after I install these pipes?
A: British Customs recommends that you Re-Map your bike to get the best possible performance. Any Triumph Dealership can perform this Re-Map for you. For additional Mapping Flexibility, we recommend that you purchase and install a DynoJet Power Commander V. With this unit installed you can upload a custom MAP developed by DynoJet for our Exhaust products. These MAPs are available here.
Q: What happened to the previous Sleeper? Why are they now called the "Pro" model?
A: After 100s of hours of R&D with the previous Sleepers we've been able to improve the overall quality and performance. The primary difference is that the Pro version is 100% Stainless Steel, from the internal Louvered Baffle System to the body, brackets and mounting hardware.