YAMAHA MT09 2021-2025: HIGH MOUNT DE-CAT AND FULL EXHAUST SYSTEMS

Description

Yamaha MT-09 High Mount Exhaust System (2021–2025)

Available in De-Cat and Full System Options

Unlock the full potential of your Yamaha MT-09 with our High Mount Race Exhaust System, crafted for the 2021–2025 model range. This system is available in both De-cat and Full System configurations, allowing you to tailor performance, sound, and weight savings to suit your riding needs.

✅ Choose Your Configuration:

De-Cat System (uses OEM headers)

• Replaces the stock muffler and mid-section (catalytic converter)

• Retains original headers

• Requires cutting stock headers for installation (instructions included)

• Ideal for riders seeking a performance and weight upgrade without a full header swap

Full System (includes titanium headers)

• Replaces muffler, mid-section, and OEM headers for a complete exhaust upgrade

• No cutting required — bolts straight on with included fittings

• Made from premium-grade titanium

• Super lightweight:

  • Stock Weight: 7kg

  • AR Full System Weight: 2.4kg

  • Weight Saving: 4.6kg

• Header pipes will develop a stunning blue/purple hue over time from heat exposure

• While remapping isn’t required, we recommend pairing with an UpMap Unit for optimal gains

DYNO Charts (Without Mapping):

🔧 Key Features:

• Material: Full titanium construction for strength, heat resistance, and significant weight reduction

• Advanced Flow Design: Maximises exhaust efficiency and throttle response

• Power Gains: Expect 2–4 bhp increase (more with ECU tuning or PCV map)

• Noise Levels (tested at 4500 RPM):

  • Stock Exhaust: 96 dB

  • GP1 with V3 (250mm): 99 dB (DB-compliant)

  • GP1: 104 dB

🎨 Exhaust Tip Options:

• GP1R – 60mm angular tip in Black or Pure Titanium

• GP2 – 200mm carbon can

• GP2R – Compact 110mm carbon can

• V3 – Available in 150mm, 200mm, or 250mm lengths, with either Black Ceramic or Titanium finish

• GP1 Carbon Sleeve – Wrapped over titanium for long-lasting durability

📌 Compatibility:

• Suitable for Yamaha MT-09 (2021–2023)

• Not compatible with 2024+ models — please see the dedicated [2024+ GP3 System]

⚠️ Important Notes:

Road Use: Non-homologated exhaust systems may not comply with local road regulations and are intended for race use only. Noise levels can vary significantly, from standard to extremely loud. Please review the specifications carefully before ordering. If you have any questions or need assistance, feel free to contact us.

Build Times: Our exhausts are built to order, with delivery times ranging from 6 to 10 weeks for standard systems and 10 to 15 weeks for more complex full systems. For the latest estimated delivery times, please visit Current Build Times. These timeframes reflect the handcrafted nature of our exhausts, which are produced by a small team in the UK, as well as the high demand for these limited products.

Exhaust Types:

1. Slip-On Exhausts – Replace the original muffler, leaving the mid-section and headers untouched. A simple way to boost sound and aesthetics.

2. De-cat Systems – Replace the muffler and mid-section, keeping the OEM headers. Improves performance and reduces weight.

3. Full Systems – Replace all components: muffler, mid-section, and headers. Delivers maximum performance and weight savings.

Each system is designed to cater to different performance, sound, and aesthetic goals. If you’re unsure which option suits your needs, feel free to reach out—we’re here to help!

Design Updates: As each exhaust is handmade to order, our designs continually evolve to incorporate improvements. As a result, the final product may vary slightly from the pictures shown. These differences are typically very minor and represent the ongoing enhancements we make to ensure the highest quality. This adaptability is one of the unique benefits of owning a handcrafted exhaust.