
The facts.
| Part Number | 71211CKZ |
|---|---|
| System Type | Complete exhaust system (full system) |
| Header Material | Titanium |
| Silencer Material | Titanium |
| End Cap Material | Carbon |
| Internal Components | Titanium |
| System Weight | 4.5 kg |
| Silencer Length | 350 mm |
| Outlet Diameter | 58 mm |
| dB Killer | Included, removable |
DescriptionThe whole story▼
The Arrow Competition EVO full exhaust system 71211CKZ is the straightforward route to genuine performance gains on your Yamaha YZF-R1/M. Weighing just 4.5 kg across the complete system, it strips meaningful mass from the stock setup, sharpens throttle response and delivers the crisp, purposeful exhaust note the crossplane R1 deserves — all with a removable dB killer that lets you dial in the noise level to suit the day.
Key Features
- Complete titanium system weighing only 4.5 kg — a direct reduction over the heavy OEM setup for improved handling and agility
- Titanium header and silencer body with carbon end cap — an excellent combination of heat resistance, minimal weight and long service life
- Removable dB killer included — straightforward to fit or remove depending on circuit regulations or personal preference
- 350 mm silencer length with a 58 mm outlet diameter — proven Competition EVO dimensions for optimal flow on the YZF-R1 platform
- Race-use specification engineering — developed specifically to deliver peak power and optimised throttle response under demanding track conditions
- Direct, hassle-free fitment on all Yamaha YZF-R1 and YZF-R1M model years 2017 through to 2026
Build Quality & Materials
Arrow has built the 71211CKZ around an all-titanium construction throughout — header, silencer shell and internal components alike. Titanium offers an outstanding strength-to-weight ratio and copes effortlessly with the extreme heat cycling a high-revving four-cylinder generates lap after lap. The carbon end cap adds a further reduction in rotational mass at the tail of the system while giving the whole package a purposefully race-bred appearance. These are not decorative choices; every material decision in the Competition EVO line is driven by function.
Track Performance
The Competition EVO designation sits at the top of Arrow's race-oriented catalogue. The system is engineered to maximise power output and sharpen throttle pick-up compared to the standard exhaust, particularly in the mid-to-upper rev range where the YZF-R1 crossplane engine does its best work. Arrow recommends a custom ECU remap to unlock the full potential of the system; without remapping, the gains are still appreciable, but a dedicated map will extract every last fraction of performance the new flow characteristics make possible.
Fitment & Compatibility
The Arrow 71211CKZ is a direct-fit complete exhaust system designed exclusively for the following models:
- Yamaha YZF-R1 (2017–2026)
- Yamaha YZF-R1M (2017–2026)
No additional adaptors or modifications are required for installation on the above models.
Important Notice
This exhaust system carries a race-use only homologation. It is not road-legal and must not be used on public roads. The removable dB killer is supplied with the system and should be fitted whenever circuit noise regulations require it.
Specifications
- Part number: 71211CKZ
- System type: complete exhaust system (full system)
- Header material: titanium
- Silencer material: titanium
- End cap material: carbon
- Internal components: titanium
- System weight: 4.5 kg
- Silencer length: 350 mm
- Outlet diameter: 58 mm
- dB killer: included, removable
- Homologation: race use only — not road legal
- Fitment: Yamaha YZF-R1 / YZF-R1M (2017–2026)
FitmentWhich bikes this fits▼
- Yamaha YZF-R1/M (2017–2026)
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Take out the washable lining and hand-wash it in lukewarm water. Clean the shell and visor with a soft cloth and water only — never solvents.
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