Arrow Pro-Race Low Complete Exhaust System in Stainless Steel & Titanium – BMW S1000RR K67 (2019-2026) 71204CP

Built from a combination of stainless steel headers and full titanium silencer internals, end caps and canister body, the Arrow Pro-Race Low complete exhaust system for the BMW S1000RR K67 is engineered to the same exacting standards as systems used in professional circuit competition. At just 3.62 kg for the entire assembly, it delivers a meaningful reduction in unsprung and total mass while freeing throttle response that the standard system suppresses.

Key Features

• Stainless steel headers provide exceptional heat resistance and corrosion durability under sustained race conditions
• Titanium silencer body, end caps and internals minimise system weight without sacrificing structural integrity
• Total system weight of 3.62 kg contributes directly to improved handling and acceleration on the BMW S1000RR
• Removable dB killer offers flexibility between track sessions and controlled road use
• Silencer outlet diameter of 68 mm and overall silencer length of 250 mm ensure optimal exhaust gas flow for peak power output
• Designed as a direct, bolt-on replacement for the BMW S1000RR K67 — no fabrication or modification required

Materials & Construction

Arrow's material selection for the Pro-Race Low system reflects a deliberate hierarchy of performance priorities. The headers, which bear the most severe thermal cycling loads, are fabricated from high-grade stainless steel — chosen for its proven resistance to heat, vibration fatigue and the corrosive by-products of combustion. From the collector onwards, Arrow transitions entirely to titanium: the silencer canister, end caps and internal components are all titanium, delivering the weight savings and thermal dissipation characteristics that circuit racing demands. The result is a system that feels and performs as premium as it looks.

Performance on Track

The Pro-Race Low designation reflects both the silencer's low-mount positioning — preserving mass centralisation and cornering clearance — and Arrow's intent that this system operates at the limit of what the BMW S1000RR K67 platform can extract. Throttle response sharpens noticeably over the factory system, and the liberated exhaust flow complements fuelling and mapping changes that serious track riders will already be considering. Arrow recommends a dedicated ECU remap to unlock the full performance benefit of this system.

dB Killer & Usage Notes

The system is supplied with a removable dB killer insert. This allows sound levels to be reduced where circuit regulations or practical considerations require it, and removed entirely when maximum performance and sound are the priority. It is important to note that this system carries a race-use only classification — it is not road homologated and is not intended for use on public roads.

Fitment & Compatibility

This complete exhaust system is designed exclusively for the following motorcycle:

• BMW S1000RR K67 — model years 2019 to 2026

Specifications