Arrow Pro-Race Titanium slip-on silencer 71903PR for BMW M1000RR K66 360° — drag me
1.22 k g
02 · Data & docs

The facts.

Technical data
BrandArrow
Part number71903PR
TypeSlip-on silencer
MaterialTitanium
Weight1.22 kg
Silencer length250 mm
Inlet diameter60 mm
Outlet diameter68 mm
Road approvalE-number approved, DB-killer included
FitmentBMW M1000RR K66 (2021-2026)
DescriptionThe whole story

Road-legal and race-ready in equal measure, the Arrow Pro-Race Titanium slip-on silencer for the BMW M1000RR K66 carries a full E-number type approval so it passes scrutineering on the street without compromise. At just 1.22 kg — achieved through an all-titanium construction from inlet to end cap — it shaves meaningful unsprung and overall mass from the tail of one of BMW's most focused superbikes, sharpening throttle response and reducing rotational inertia where it matters most.

Key Features

  • E-number road approval and integrated DB-killer for legal street use, removable when regulations permit for a freer exhaust note on track.
  • Full titanium construction throughout — body, end cap, inner components — combining exceptional corrosion resistance with minimal weight for long-term durability.
  • 1.22 kg total weight delivers a tangible reduction over the stock unit, contributing to improved throttle response and a more dynamic ride feel.
  • 60 mm inlet and 68 mm outlet diameters optimise exhaust flow for the M1000RR's high-revving inline-four.
  • 250 mm silencer length, precision-engineered for the K66 chassis geometry — no modification required for a clean, factory-quality fitment.
  • Directly compatible with Arrow headers to form a complete Arrow exhaust system, unlocking further performance gains when combined with a dedicated ECU remap.

Build Quality and Performance

Arrow's Pro-Race line sits at the top of the Italian manufacturer's road and track hierarchy. Every component of the 71903PR is fabricated in titanium — a material chosen not merely for its weight advantage but for its ability to withstand the extreme thermal cycling that the M1000RR's engine generates at race pace. The result is a silencer that resists discolouration, corrosion and fatigue far beyond what stainless steel or aluminium alternatives can offer over a sustained period of hard use.

The integrated DB-killer is engineered to keep sound levels within legal limits without introducing a restrictive baffle that would blunt mid-range delivery. Riders who upgrade to an Arrow header simultaneously and commission a bespoke ECU remap will find the full system transforms the M1000RR's power curve, with improved fuelling and a broader, more linear torque spread.

Image Note

Product photography currently shows a BMW S1000RR, as Arrow has not yet released dedicated imagery for the M1000RR. The silencer shown is geometrically and aesthetically identical to part number 71903PR; fitment and specification for the BMW M1000RR K66 (2021-2026) are exactly as described.

Fitment and Compatibility

  • BMW M1000RR — chassis code K66, model years 2021, 2022, 2023, 2024, 2025, 2026
  • Compatible with Arrow headers for full-system configuration

Specifications

Attribute Detail
Part number 71903PR
Weight 1.22 kg
Material Titanium (body, end cap, inner components)
Silencer length 250 mm
Inlet diameter 60 mm
Outlet diameter 68 mm
Road approval E-number approved, DB-killer included
Fitment BMW M1000RR K66 (2021-2026)
FitmentWhich bikes this fits
  • BMW M1000RR K66 (2021–2026)
07 · Support

Questions, one topic at a time.

Estimate your shipping

Get the real shipping cost for this item to your address — the same rates as checkout.

Pick your countrySame rates as checkout

Choose a destination and hit Estimate — we fetch the live rates for this item.

How long does delivery take?

We’re based in Germany. Standard delivery goes by DHL and national postal services and takes about 2–5 days within Germany, 1–2 weeks within the EU and 2–6 weeks outside the EU. Need it sooner? Express delivery reaches most of the world within a few days — just choose it at checkout where available.

How much does shipping cost?

Your exact shipping cost is calculated by destination and weight and shown at checkout before you pay — no hidden fees. Express delivery is selectable at checkout where available.

Do you ship to my country?

Yes, we ship to over 130 countries. Prices, taxes and delivery times for your destination are calculated automatically at checkout.

Will I have to pay customs or import duties?

Within the EU, no — our prices already include all duties and EU VAT. For deliveries outside the EU (e.g. Switzerland, the UK or the USA), your order may be subject to import duties and taxes set by your country. These are collected by the carrier when your parcel arrives, aren’t included in our prices, and are outside our control.

How can I track my order?

As soon as your parcel ships we email you a tracking link, so you can follow it all the way to your door.

What if an item is out of stock?

On out-of-stock items you can request a delivery time or leave your email to be notified the moment it returns — just use the notification box on the product.

Didn’t find your answer?

Our team will personally help you choose the right gear or part — around 24h for a reply.

08 · Paddock

Before you go.

Trending in the paddockHover pauses
A.Marquez73 V3 TC-2 Ale...€949,00Márquez Motegi5 TC-6€949,00Toprak Razgatlıoğlu Rep...€949,00Valion TC-1 Red / Grey€899,00A.Marquez73 V3 TC-2 Ale...€949,00Márquez Motegi5 TC-6€949,00Toprak Razgatlıoğlu Rep...€949,00Valion TC-1 Red / Grey€899,00A.Marquez73 V3 TC-2 Ale...€949,00Márquez Motegi5 TC-6€949,00Toprak Razgatlıoğlu Rep...€949,00Valion TC-1 Red / Grey€899,00A.Marquez73 V3 TC-2 Ale...€949,00Márquez Motegi5 TC-6€949,00Toprak Razgatlıoğlu Rep...€949,00Valion TC-1 Red / Grey€899,00A.Marquez73 V3 TC-2 Ale...€949,00Márquez Motegi5 TC-6€949,00Toprak Razgatlıoğlu Rep...€949,00Valion TC-1 Red / Grey€899,00A.Marquez73 V3 TC-2 Ale...€949,00Márquez Motegi5 TC-6€949,00Toprak Razgatlıoğlu Rep...€949,00Valion TC-1 Red / Grey€899,00A.Marquez73 V3 TC-2 Ale...€949,00Márquez Motegi5 TC-6€949,00Toprak Razgatlıoğlu Rep...€949,00Valion TC-1 Red / Grey€899,00A.Marquez73 V3 TC-2 Ale...€949,00Márquez Motegi5 TC-6€949,00Toprak Razgatlıoğlu Rep...€949,00Valion TC-1 Red / Grey€899,00A.Marquez73 V3 TC-2 Ale...€949,00Márquez Motegi5 TC-6€949,00Toprak Razgatlıoğlu Rep...€949,00Valion TC-1 Red / Grey€899,00A.Marquez73 V3 TC-2 Ale...€949,00Márquez Motegi5 TC-6€949,00Toprak Razgatlıoğlu Rep...€949,00Valion TC-1 Red / Grey€899,00A.Marquez73 V3 TC-2 Ale...€949,00Márquez Motegi5 TC-6€949,00Toprak Razgatlıoğlu Rep...€949,00Valion TC-1 Red / Grey€899,00A.Marquez73 V3 TC-2 Ale...€949,00Márquez Motegi5 TC-6€949,00Toprak Razgatlıoğlu Rep...€949,00Valion TC-1 Red / Grey€899,00A.Marquez73 V3 TC-2 Ale...€949,00Márquez Motegi5 TC-6€949,00Toprak Razgatlıoğlu Rep...€949,00Valion TC-1 Red / Grey€899,00A.Marquez73 V3 TC-2 Ale...€949,00Márquez Motegi5 TC-6€949,00Toprak Razgatlıoğlu Rep...€949,00Valion TC-1 Red / Grey€899,00
Join the paddock — drops & deals, no noise.