
The facts.
| Brand | Arrow |
|---|---|
| Part Number | 71204CP |
| System Type | Full exhaust system (Pro-Race Low) |
| Fitment | BMW M1000RR K66 (2021–2026) |
| Header Material | Stainless steel |
| Silencer Material | Titanium |
| End Caps / Internals | Titanium |
| System Weight | 3.62 kg |
| Silencer Length | 250 mm |
| Outlet Diameter | 68 mm |
DescriptionThe whole story▼
The Arrow Pro-Race Low complete exhaust system 71204CP is one of the most practical full-system upgrades available for the BMW M1000RR K66. Weighing just 3.62 kg and engineered to deliver measurable gains in throttle response and power delivery, it is the kind of bolt-on investment that rewards both dedicated track-day riders and serious club racers who want more from every session without compromising reliability.
Key Features
- Stainless steel headers for outstanding heat resistance, rigidity and long service life across repeated high-temperature track cycles.
- Titanium silencer, end caps and internals for exceptional heat dissipation and an overall system weight of just 3.62 kg.
- Removable dB-killer included — reduce noise levels for noise-sensitive venues, then pull it out for unrestricted performance when conditions allow.
- 250 mm silencer length with a 68 mm outlet connection diameter, engineered for a precise factory-quality fitment.
- Optimised exhaust gas flow developed specifically for the M1000RR K66 platform, improving throttle response and peak power under racing conditions.
- Straightforward installation designed to integrate cleanly with the existing M1000RR K66 chassis and ancillaries.
Build Quality and Materials
Arrow has paired two complementary materials to give this system the best of both worlds. The headers are fabricated from high-grade stainless steel — a choice that prioritises durability and dimensional stability under the sustained thermal loads generated by the S1000RR-derived four-cylinder engine. The silencer, end caps and all internal components are manufactured in titanium, which keeps weight to a minimum while handling heat more effectively than steel equivalents. The result is a system that feels purposeful and premium without unnecessary mass.
Track-Day Practicality
Everyday track-day usability has been central to the design of the 71204CP. The included dB-killer fits securely and removes in seconds, meaning you can comply with circuit noise limits without carrying additional hardware. A custom ECU mapping is strongly recommended to unlock the full performance benefit of this system and achieve the sharpest possible throttle response across the rev range.
Important Notice
Race-use only — this complete exhaust system carries no road-use type approval. It is intended exclusively for closed-circuit competition and track-day use. Ensure compliance with your venue's noise regulations when the dB-killer is removed.
Fitment and Compatibility
The Arrow 71204CP Pro-Race Low exhaust system is designed and manufactured specifically for the following motorcycle:
- BMW M1000RR K66 — model years 2021, 2022, 2023, 2024, 2025, 2026
Specifications
| Attribute | Detail |
|---|---|
| Brand | Arrow |
| Part Number | 71204CP |
| System Type | Full exhaust system (Pro-Race Low) |
| Fitment | BMW M1000RR K66 (2021–2026) |
| Header Material | Stainless steel |
| Silencer Material | Titanium |
| End Caps / Internals | Titanium |
| System Weight | 3.62 kg |
| Silencer Length | 250 mm |
| Outlet Diameter | 68 mm |
| Homologation | Race-use only — no road approval |
| dB-Killer | Included, removable |
FitmentWhich bikes this fits▼
- BMW M1000RR K66 (2021–2026)
Questions, one topic at a time.
Get the real shipping cost for this item to your address — the same rates as checkout.
Choose a destination and hit Estimate — we fetch the live rates for this item.
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.
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.
Yes, we ship to over 130 countries. Prices, taxes and delivery times for your destination are calculated automatically at checkout.
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.
As soon as your parcel ships we email you a tracking link, so you can follow it all the way to your door.
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.
You have the right to cancel within 14 days of receiving your order. Register your return by email first; once it’s approved you have a further 14 days to send the goods back. Items should be unused and in their original packaging.
Register your return by email with your order number before sending anything back, and we’ll send you the return instructions. Please note: returns that aren’t registered in advance can’t be accepted.
The quickest way is to place a new order for the size you need and register a return for the original by email — just let us know it’s an exchange.
We’re sorry — that shouldn’t happen. Contact us with your order number and a photo as soon as you can, and we’ll arrange a replacement or refund right away. Faulty goods are always covered by your statutory warranty.
Refunds go back to your original payment method, usually within 3–5 working days of your return reaching our warehouse.
PayPal, all major credit and debit cards (Visa, Mastercard, American Express), Klarna (pay later and instalments), Apple Pay, Google Pay and more — all processed securely via PayPal and Mollie.
Yes. Choose Klarna at checkout to split your purchase into flexible monthly installments.
Your payment is taken when you place your order. If you choose Klarna, you pay later according to Klarna’s terms.
Every payment runs over an SSL-encrypted connection through certified providers. We never see or store your full card details.
If your order hasn’t shipped yet, contact us as soon as possible and we’ll do our best to change or cancel it.
No — you can check out as a guest. An account simply lets you track orders and reorder faster.
For customers in the EU, prices are shown including your country’s local VAT. For customers outside the EU, prices are shown without VAT — instead, your country’s import taxes and duties may apply on delivery (see the customs question).
Yes. Your invoice is attached to your order confirmation email and is also available in your account.
Yes. We’re an authorised dealer, so every product is 100% original and comes with the full manufacturer warranty.
Yes. Everything we sell is genuine and comes with the manufacturer’s warranty, on top of your statutory rights. Keep your invoice as proof of purchase and contact us if you ever need to make a claim — we’ll help you through it.
Our team is happy to help. Use the contact button below and we’ll personally help you choose the right gear or part.
Measure your head circumference about one centimetre above your eyebrows and compare it with the size chart on this page. Between sizes? Choose the smaller one — the padding beds in with use.
Yes — it’s tested and approved to the current ECE 22.06 standard and road-legal across the EU.
Most of our touring and sport helmets are Pinlock-ready and many include the insert. Check the ‘What’s in the box’ section on this page for this model.
Yes — the cheek pads are channelled so the arms of your glasses slide in comfortably.
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.
Our team will personally help you choose the right gear or part — around 24h for a reply.