Home / BRANDS / TRIUMPH / TRIDENT 660 (2021 - 2024) / 3-1 Stainless steel full exhaust system, matt black, with STR-1 exhaust
Part number: T26A-C135MB

TRIDENT 660 (2021 - 2024)

3-1 Stainless steel full exhaust system, matt black, with STR-1 exhaust

1,760.00 €

1,760.00 €

Quantity: 1
Availability: 3-6 weeks
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Pay in 3 installments of €586.67

+1,2 hp
+1 nm
-1,2 Kg
Technical features
+1,2 hp @ 8000 rpm
+1 Nm @ 8000 rpm
-1,2 Kg (SC 6,8 Kg / STOCK 8 Kg)
3-1 Full exhaust system
Body material
SAE 304 stainless steel
Headers material
SAE 304 stainless steel
Mounting type
Lambda probe
Type approval - EC / ECE
Yes - Street legal - Euro 5
Type approval certificate


The new STR-1 exhaust is the last creation of SC-Project R&D Department and represents a full step forward in terms of tuning process of the new Triumph Tident 660.

To combine perfectly the aesthetic of the bikes originally designed and produced with low-position exhaust – sometimes totally positioned under the engine – it has been necessary to project and develop a new solution: the answer is the new and innovative STR-1 exhaust.

Great attention has been dedicated to performance optimization and sound output, which is a real “must” for the 3-cylinders Triumph engines and for all SC-Project products.

The full-system for the Trident 660 has been manufactured with high-quality stainless steel AISI 304 and with top level quality finishes that this bike deserves. All couplings are guaranteed by male / female bushings that ensure a perfect seal, with special TIG weldings handcrafted in protected environment. The option “black color” is made with a special ceramic paint process to resist to high temperatures. The specific carbon fiber cover is manufactured with autoclave process to offer a unique style and harmonic design.

The STR-1 full system for Triumph Trident 660 allows to save 1,2 kilograms and to gain a maximum of 1.2 hp and 1.0 Nm of torque at 8.000rpm (if compared to the original system), with a sensible improvement of throttle response and riding experience throughout the engine delivery range, in the total respect of Euro5 regulations. No ECU mapping is required.

The installation is plug-and-play and ECU remapping is not required.
For racing use only, it is possible to remove the catalytic converter.
The removal of the catalytic converter does not meet the Euro 5 regulations.