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Roadsitalia Exhaust
The BT1100 Bulldog was built around a specific idea: take the 1,063cc V-twin from the Dragstar 1100, already well regarded for its generous torque and the bassy voice typical of air-cooled V-twins, and build a muscular roadster around it aimed specifically at the European market. Designed and assembled in Italy — in the former Belgarda factory — it is one of the very few Yamahas with a direct connection to our country. The engine is a 75-degree V-twin with SOHC valve timing and Mikuni carburettors, with shaft final drive: everything contributes to defining a bike with a solid character, deliberately tuned for low and mid-range delivery, with 88Nm of torque available from 4,500rpm. On a bike with this kind of identity, the sound of the exhaust is a fundamental part of the riding experience — and the two lateral silencers, one on each side, amplify that voice with a visual and sonic impact that the original end cans simply cannot match. You can find the full range in the dedicated section for exhausts for Yamaha on our website.
The products in this category are sports exhausts designed to replace the two original end cans on the BT1100 Bulldog. The work concerns the right and left lateral silencers only: the original headers and the front section of the exhaust system remain in place. Fitting is carried out on the bike's original mounting points with no special adapters required, and each pair of exhausts is supplied with a complete fitting kit. To ensure a proper seal and correct alignment on both sides, we recommend having the installation carried out by a qualified mechanic.
The weight saving over the original end cans is noticeable on both sides and translates into an overall reduction in the weight of the bike. In terms of sound, the Bulldog's carburetted V-twin — already rich and deep-voiced — gains a more open note with the two sports exhausts, with a fuller tone that enhances the character of the engine and makes that baritone pulse at low revs even more present. In terms of behaviour, a different management of exhaust gas flow can favour a more direct throttle response and, in certain riding conditions, a greater feeling of mid-range engine readiness.
Two sleeve lengths are available for this category: 285 mm and 400 mm. The difference is primarily aesthetic and relates to lateral bulk, allowing you to find the visual proportions that best suit your bike. The choice applies to both silencers, which are always supplied as a matching pair. Both versions share the same construction characteristics.
We build every exhaust in our workshop with handcrafted manufacturing in Lombardy, in the province of Bergamo. Each piece is made to order and goes through internal quality control before dispatch. We operate direct from the manufacturer, without intermediaries: a direct relationship that allows us to maintain consistent quality standards and give every order the attention it deserves.
Every pair of sports exhausts is supplied with standard dB killers included in both silencers. Our exhausts are homologated for road use throughout Europe and Switzerland: the homologation certificate is included and is valid with both dB killers fitted. Removing the dB killers invalidates the product's homologation. For those who want to reduce the sound level further, the No-Noise option is available, with an internally welded filter in both silencers that provides a perceptible reduction in decibels without significantly affecting the exhausts' overall behaviour. The selection is made directly on the product page.
As this involves replacing only the end cans on a carburetted bike like the BT1100 Bulldog, no modifications to the carburetion or fuelling system are normally required. The bike adapts to the new configuration without any particular issues.
Updated production times are visible directly at checkout and may vary depending on the period. Once your order has been dispatched, you will automatically receive a tracking code to follow your parcel.
For any questions about fitting, compatibility or the differences between the available models, check our FAQ section or contact us via the Contact page or chat: we respond directly and without unnecessary delays.
Below you will find the product list available for the Yamaha BT1100 Bulldog. The differences between the various sports exhausts are primarily aesthetic: body shape, material and finish. On each product page you can select the sleeve length (285 mm or 400 mm) and, if desired, the No-Noise option. The chosen configuration applies to both silencers in the pair. Visit the product page to view detailed photos, read the technical specifications and configure your exhausts.
