Description
Kawasaki Z900 (2017–2025) GP1R, GP2R & V3 De-Cat Race Exhaust Systems
Upgrade your Kawasaki Z900 with our high-performance de-cat race exhaust systems, designed for serious riders looking for weight savings, improved power, and an aggressive MotoGP-inspired sound.
Exhaust Options:
- GP1R: 60mm bore angular tip, available in Black or Pure Titanium.
- GP2R: 110mm carbon-fibre can for a sleek, lightweight design.
- V3: 150mm length can, available in Black Ceramic or Titanium.
Key Features:
Significant weight reduction (just 1.5kg).
Aggressive MotoGP-style sound.
Eliminates the restrictive catalytic converter.
Gains of 3–5 bhp without requiring a remap.
Requires cutting of the stock exhaust—measurements must be checked before ordering (74mm or 79mm outer diameter at the cutting point).
Noise Levels (Tested at 5500 RPM):
- GP1R Can: 103dB (with dB killer) / 106dB (without).
- GP2R Can: 103dB (with dB killer) / 106dB (without).
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:
- Slip-On Exhausts: Replaces the original muffler, keeping the mid-section (catalytic converter) and headers.
- De-Cat Systems: Replaces the muffler and catalytic converter while retaining OEM headers, offering weight savings and performance gains.
- Full Systems: Complete replacement of muffler, mid-section, and headers for maximum performance.
Design Updates: As each exhaust is handmade to order, our designs are constantly evolving to incorporate improvements. As a result, the final product may vary slightly from the pictures shown. These differences are typically minor and represent our commitment to continuous enhancement.
Got questions? Need help choosing the right system? Get in touch—we’re here to help!
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