Exhausts Triumph Street Triple 660 S 2017-2022

The Street Triple 660 S is the version of the Triumph naked bike designed for the A2 licence: it shares the frame, styling and setup of the Street Triple 765, with the three-cylinder engine reduced to 660cc. Built from 2017 to 2022, it keeps the character and sound typical of the British triple, and the exhaust is one of the most direct ways to make it even more personal. To explore all our proposals for this brand, you can visit the exhausts for Triumph section.

The silencers we offer for this model are sport silencers designed to replace the original muffler, which on the Street Triple 660 S is positioned low, under the engine, just like on the Street Triple 765 R and RS of the same years: the muffler and its mountings are the same. This is not a full system: the original headers and connecting pipes stay in place. The work concerns only the muffler, with mountings compatible with the stock ones. The mounting kit is included. We recommend installation by a qualified mechanic to ensure a correct seal and the best result.

The most immediate advantage is the weight saving compared to the bulky, heavy original muffler: less weight down low and an even more agile bike, already one of the strong points of the 660 S. In terms of sound, the sport silencer makes the three-cylinder tone fuller and more defined, with a stronger presence especially at mid-to-high revs, without becoming tiring in everyday use. As for engine response, the management of the exhaust gas flow can favour a more linear throttle response.

Every sport exhaust is handcrafted in Lombardy, in the province of Bergamo. Each piece is made to order and subjected to internal quality control before shipping. Our exhausts are sold directly, with no intermediaries: this keeps the quality-to-price ratio consistent and means the people you talk to know these exhausts inside out.

Every exhaust silencer is supplied with a standard dB killer included. Removal of the dB killer invalidates the product's homologation and is not officially permitted. For those seeking a further reduction in sound level in specific contexts, the No-Noise option is available: a welded internal filter that further reduces decibels without significantly affecting engine behaviour. The selection is available directly on the product page.

As this is an intervention limited to the silencer, the ECU does not normally require any mapping modifications: the Street Triple 660 S injection system autonomously manages the flow variations introduced by the new silencer, without the need for specific remapping in the vast majority of cases.

Updated production lead times are visible directly at checkout and vary depending on the period. Once the order has been shipped, tracking information is sent automatically for delivery monitoring.

For any technical questions or information about the most suitable product for your configuration, we invite you to consult the FAQ section of the website or contact us via the Contact page or chat. We respond with direct product expertise.

In the product list below you will find all available variants for the Street Triple 660 S 2017-2022. The differences between models are primarily aesthetic: body shape, material (stainless steel, carbon, titanium depending on the version) and surface finish. Click on the product page that interests you to view detailed photos, read the full technical specifications and configure your silencer with the available No-Noise options from the dropdown menu.