Arrow Thunder Slip-On Silencer Aluminium Dark Yamaha YZF-R3 2015-2018 71831AKN

A practical, road-legal upgrade that transforms the daily ride on your Yamaha YZF-R3, the Arrow Thunder 71831AKN pairs a lightweight dark aluminium body with carbon end caps to deliver genuine weight savings, a crisper throttle response and a soundtrack worthy of the R3's sporting character — all without sacrificing street compliance.

Key Features

• Weighs just 1.93 kg, reducing unsprung mass for noticeably sharper throttle pickup and more agile handling on the daily commute or weekend blast
• Dark anodised aluminium canister resists heat and corrosion across thousands of road miles, retaining its finish far longer than painted alternatives
• Carbon end cap keeps weight low while adding a motorsport-inspired detail that elevates the R3's standard looks
• Stainless steel internal components ensure long service life even under sustained high-temperature use
• Supplied with an E-number type approval, making it fully road-legal across EU markets straight out of the box
• Integrated DB-Killer included for noise compliance — remove it on track days for the full Arrow exhaust note
• Arrow recommends pairing this silencer with a dedicated ECU map to optimise fuelling and unlock the best throttle response from your YZF-R3

Built for Everyday Use

Arrow engineered the Thunder range specifically with the road rider in mind. The 250 mm aluminium canister is compact enough to keep tight cornering clearance on the R3's chassis, while the matched 45 mm inlet and outlet diameters maintain exhaust gas velocity for a broad, usable power delivery rather than a narrow peak that only appears at the top of the rev range. The dark aluminium finish is far more forgiving than polished stainless in everyday conditions — road grime and water spots simply do not show, keeping the bike looking sharp between washes.

Materials and Construction

Arrow selects dark anodised aluminium for the outer sleeve because it strikes the best balance between weight, thermal performance and durability for street-focused applications. The carbon fibre end cap is not merely cosmetic; it insulates the outlet area and shaves grams from a region that benefits most from low mass. Internal baffling and packing use stainless steel throughout, ensuring corrosion resistance and consistent sound output over the life of the silencer. The DB-Killer slots into the outlet and can be removed for closed-circuit use in minutes.

Fitment and Compatibility

This silencer is a direct bolt-on replacement for the standard exhaust on the following model:

• Yamaha YZF-R3 — model years 2015, 2016, 2017 and 2018

Please note: the primary product image is a representative render as Arrow had not yet produced a model-specific photograph for the YZF-R3 at the time of listing. The part itself conforms fully to the specifications described here. For best results, Arrow recommends fitting a dedicated fuel map alongside this silencer.

Specifications