Your Triumph triple doesn’t have to sound like a LAMS bike!
So you went and bought a Triumph 660 triple. Smart move. Whether you opted for the naked Trident 660 or the more adventure-focused Tiger Sport 660, the Brits built a genuinely premium middleweight platform that doesn’t feel like a compromise.
But here’s the thing. That stock exhaust on both models still sounds like you’re waiting for your full licence. Time to fix that.
Enter Yoshimura’s AT2. Because “Learner” Doesn’t Mean Boring.
The AT2 Race Series full system transforms your Trident 660 (21-24) or Tiger Sport 660 (22-24) from “sensible first bike” to “hang on, what’s that?” and wow, it looks the business. That aggressive end cap design looks like Yoshimura’s engineers raided Lockheed Martin’s filing cabinet. All angular edges and fighter-jet aggression that photographs like it belongs on something twice as expensive.
Whether it’s tucked under the Trident’s minimalist tail or complementing the Tiger Sport’s sport-touring stance, the AT2 fits the brief perfectly.
Performance? We’re talking 6.9% more horsepower and a 1.3% torque bump. Gains you’ll genuinely feel, not just read about. There’s a cleverly designed pre-muffler hidden in the collector that gives the 660 triple an exhaust note with actual personality. Angry, purposeful, and nothing like the polite whisper Triumph shipped from the factory.
Weight? Drops to just 4.1kg, nearly half the stock system. On a bike you’re still learning the limits of, that reduced mass makes a genuine difference to how quick it turns and how confident it feels mid-corner. The Works Finish stainless develops its own heat-coloured character after a few rides, so your exhaust actually looks better the more you use it.
This system is part of Yoshimura’s Race Series lineup, which means it’s made to be used on a closed course only. Perfect combination of looks and track day performance I’d say. If you’re not doing track days on this bike, you absolutely should be!
The Investment Conversation.
Let’s not dance around it. At $2,599.95 for the Race AT2 Stainless Full System, this isn’t something you impulse buy while waiting for your coffee order. But here’s the thing. This is 70-plus years of Yoshimura racing pedigree bolted to your motorcycle. Gorgeous welds. Distinctive Works Finish and an end cap design that looks superb.
Your Triumph 660 platform was already the middleweight bike that doesn’t apologise. The Yoshimura AT2 is what happens when you decide the exhaust note shouldn’t apologise either.
- Part #: YO-19660AP520
- Fitment: 660 Trident 2021-2024 + 660 Tiger Sport 2022-2024
Yoshimura exhaust pipes, hard parts and electrical components are proudly distributed by A1 Accessory Imports, Australia’s House of Powersports.
To find an exhaust pipe suited to your motorcycle visit:
www.houseofpowersports.com.au/yoshimura/model-search
