Description
Graves Kawasaki Ninja 650 / Z650 Full Exhaust System. This full exhaust system is designed for the application listed below.
Specifications and features
- Pipework: stainless steel.
- Silencer body: carbon fibre.
- Diamond-profile silencer.
- 7075-series hard-anodised aluminium exhaust flanges.
- Machined stainless-steel exhaust-port spigots.
Fitment
- Kawasaki Ninja 650 / ER650 2017 – 2025
Installation and use
- Manufacturer specifies closed-course competition use only; this is not a road-approved exhaust.
- Match the ECU calibration to the exhaust configuration. Any quoted development performance depends on the associated intake and tuning setup; tuning equipment is separate.
- Optional sound insert sold separately.
Manufacturer part number: EXK-18Z650-FSC
Published measurements
- Published weight: original 17.6 lb; Graves 6.6 lb.
- Graves sound at idle / 4,000 rpm: with optional insert 89 / 101 dB; without insert 93 / 103 dB. Original: 71.5 dB at idle and 84.5 dB at 5,000 rpm.
Manufacturer test figures are shown at the stated engine speeds. Track noise tests may use a different method.




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