Yoshimura Race AT2 Titanium Full Exhaust System for Triumph Street Triple 765

Yoshimura Race AT2 Titanium Full Exhaust System for Triumph Street Triple 765

The Yoshimura AT2 Full Titanium Race Series Exhaust is a closed-course racing exhaust system for the Triumph Street Triple 765 with its three-cylinder engine. Developed and built in Chino, California, it uses premium Japanese titanium alloy and weighs 9.3 lbs., compared with 21.0 lbs. for the stock exhaust.

Designed for race use, the system works with race bodywork and race oil pan routing. It is engineered to pair with Yoshimura's high-end Triumph engine packages, with M18 lambda sensor bungs for aftermarket data logging and ECU tuning.

What's in the Box

• Yoshimura AT2 Full Titanium Race Series Exhaust system.
• Matching matte carbon fiber heat shield heel guard.

Key Specifications

Full Titanium Construction and Reduced Weight

The premium Japanese titanium alloy construction reduces exhaust weight from the stock system's 21.0 lbs. to 9.3 lbs. This lower weight helps improve motorcycle agility and side-to-side handling.

Carbon Fiber End Cap and Heel Guard

The AT2 features a matte carbon fiber end cap with an angular, facet-formed inner design. A matching matte carbon fiber heat shield heel guard is included.

M18 Lambda Sensor Integration

M18 lambda sensor bungs are positioned on each header tube and the mid-pipe. These support aftermarket data logging and precise ECU tuning.

Race Bodywork and Oil Pan Routing

The exhaust is designed to work with race bodywork and race oil pan routing for a closed-course racing setup.

Race Engine Package Performance

When paired with the engine package, the system delivers power gains of up to 15.5% and torque gains of up to 15%, both at 11,000 rpm. It can run on stock mapping, but its geometry is tailored to maximize performance with Yoshimura's complete race engine package.

Three-Cylinder Exhaust Sound

The system delivers the Yoshimura exhaust note while emphasizing the Triumph engine's distinctive three-cylinder sound. It accommodates an optional sound insert kit when track day decibel limits require sound reduction.

Frequently Asked Questions

Which motorcycle is this exhaust designed for?
It is designed for the Triumph Street Triple 765 with its three-cylinder engine, using race bodywork and race oil pan routing.

What is the intended use of this exhaust?
The Yoshimura AT2 Race Series system is designed for closed-course racing.

How much does the AT2 Race Series exhaust weigh?
It weighs 9.3 lbs., compared with 21.0 lbs. for the stock exhaust.

What performance gains are stated with the engine package?
With the engine package, the stated gains are up to 15.5% more power and up to 15% more torque at 11,000 rpm.

Can the system run on stock engine mapping?
Yes. It can run on stock mapping, although its geometry is tailored for maximum performance with Yoshimura's complete race engine package.

Does it support tuning sensors and sound reduction?
Yes. M18 lambda sensor bungs on each header tube and the mid-pipe support aftermarket data logging and ECU tuning. The exhaust also accommodates an optional sound insert kit for track day decibel limits.