⟲ 360° — drag meThe facts.
| Brand | Akrapovic |
|---|---|
| Part number | S-CF4SO1-APC |
| Fitment | CFMOTO 450 SR (2024–2026) |
| Line | Slip-On Line (Carbon) |
| Materials | Handmade carbon fibre sleeve and end cap, stainless steel link pipe and inner structure |
| Weight | 1.44 kg (stock 4.09 kg, saving 2.65 kg / 64.8 %) |
| Power | 48.7 PS (stock 45.8 PS, gain 2.9 PS at 11,000 rpm) |
| Torque | 35.7 Nm peak (stock 35.9 Nm), gain 2.3 Nm at 4,000 rpm |
| Design | Short muffler with a racing look |
| Road approval | None — closed-course competition use only |
DescriptionThe whole story▼
1.44 kilograms. That is what is left of a 4.09 kg standard silencer once Akrapovic has replaced it — 64.8 per cent gone, and the largest proportional weight saving of any slip-on in this catalogue.
Key Features
- 1.44 kg against the standard 4.09 kg: 2.65 kg and 64.8 per cent less
- Handmade carbon fibre outer sleeve and end cap
- Stainless steel link pipe and muffler inner structure
- 48.7 PS, up from 45.8 PS
- Short muffler with a racing look
- Designed for closed-course competition use
Read the Torque Figures Carefully
Akrapovic records a gain of 2.3 Nm at 4,000 rpm, and at the same time a peak torque of 35.7 Nm against the standard 35.9 Nm. Both numbers are theirs, and they do not contradict each other: the curve rises in the middle and gives up two tenths of a newton metre at its highest point.
We are not going to describe that as a torque increase without qualification. What the exhaust does is fill in at four thousand revs, which on a 449 cc twin is worth more than a peak two tenths higher.
Throttle Response Was the Goal
Akrapovic states that the engineers' aim during development was the best possible throttle response, alongside aesthetics, sound and weight. That ordering is unusual — most of these descriptions lead with power — and it fits what the numbers show.
Competition Use
This exhaust is designed for use on closed-course competition motorcycles. It has no road approval. The 450 SR is a road-registered machine in Europe, so this is a part for track work rather than a road upgrade.
Handmade Carbon
Akrapovic specifies the carbon sleeve and end cap as handmade, over a stainless steel link pipe and internal structure. That combination is why the part survives track use: the visible carbon does the weight saving, and the steel underneath does the work.
Akrapovic Building for CFMOTO
Ten years ago a Slovenian exhaust maker with a MotoGP record would not have catalogued a part for a Chinese manufacturer. That it does now says more about where CFMOTO has got to than any specification sheet.
The 450 SR is a 449 cc parallel twin sports bike sold into A2 markets across Europe, and it has been taken seriously enough that the aftermarket has followed it.
Thirty Minutes, and Keep the Original
The standard silencer comes off in half an hour. Keep it — the 450 SR is a young model with a used market still forming, and a complete original exhaust in a box is worth having when the time comes to sell.
Fitment and Compatibility
S-CF4SO1-APC covers the CFMOTO 450 SR from model year 2024 through 2026. Installation is quoted at 30 minutes.
Road Approval
None. This product does not meet emission compliance requirements for street or highway use.
Specifications
- Part number: S-CF4SO1-APC
- EAN: 3831126435233
- Fitment: CFMOTO 450 SR (2024–2026)
- Line: Slip-On Line (Carbon)
- Materials: handmade carbon sleeve and end cap, stainless steel link pipe and inner structure
- Weight: 1.44 kg (stock 4.09 kg, saving 2.65 kg / 64.8 %)
- Power: 48.7 PS (stock 45.8 PS, gain 2.9 PS at 11,000 rpm)
- Torque: 35.7 Nm peak (stock 35.9 Nm), gain 2.3 Nm at 4,000 rpm
- Installation time: approx. 30 minutes
- Road approval: none — closed-course competition use only
- Country of manufacture: Slovenia
DownloadsInstructions▼
FitmentWhich bikes this fits▼
- CFMOTO 450 SR (2024–2026)
- CFMOTO 450 SR S
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.