The facts.
| Part number | GDU1804COM |
|---|---|
| Type | Half system |
| Silencer design | Force Evo |
| Material | Carbon |
| Fitment | Ducati HYPERMOTARD 821 / Hyperstrada 821 (2013-2015) |
| Road approval | EC type-approved — check certificate scope |
| Origin | Made in Italy |
DescriptionThe whole story▼
The same kit as GDU1804TOM with a carbon-cased silencer at the end of it. A modest premium, and the only thing that changes is what you see.
Key Features
- Approved 3/4 kit for the Ducati Hypermotard 821 and Hyperstrada, 2013 to 2015.
- Force silencer, carbon fibre case.
- Two-into-one pipe in stainless steel, low mounting.
- Catalysts fitted in the Y pipe on the homologated version.
- Complies with emissions regulations as supplied.
- The carbon version; the titanium version is GDU1804TOM and costs less.
An Approved Exhaust That Replaces the Catalyst
Most approved aftermarket exhausts keep the motorcycle's own catalytic converter and change only what comes after it. Spark took the other route here and built catalysts into the Y pipe of its own kit.
That is more expensive to engineer and it is why an article that replaces most of the exhaust can still be sold road legal. The paperwork is not a loophole — Spark states that the homologated version complies with the emissions regulations.
Carbon on a 2013 Hypermotard
The 821 is a motorcycle with a lot of black plastic and a red trellis frame, and a carbon silencer sits in that palette without arguing with it. The titanium version is the brighter of the two, and it will go bronze at the outlet.
Neither is lighter in any way Spark publishes for this kit; there are no weight figures on the article page. What is documented is the construction, the mounting and the approval.
Two Bikes, One Kit
Spark lists this article for the Hypermotard 821 and for the Hyperstrada, which share the engine, the frame and the low-mount exhaust routing. One kit covers both.
What it does not cover is the high-passage version of the 821. That layout runs the silencer under the tail and needs different parts throughout — including the number plate holder, because the exhaust takes the space the standard one uses.
Ten Years of Standing Still
An exhaust on a 2013 motorcycle has been through a decade of heat cycles and road salt. Replacing the section behind the header is often less about sound than about a rusted-through mid-pipe, and a kit that arrives with its own catalysts and mounting is the tidy way out of that.
Where the Pipe Goes
Low mounting: the two-into-one stainless pipe carries the gas along the flank to a silencer beside the rear wheel, in the position the standard low-mount exhaust used.
The 821 also existed with a high-passage exhaust. That configuration takes a different Spark article, and its own plate holder, GDUPT12I.
Buying the Silencer Separately
If a Spark pipe is already fitted, the carbon silencer on its own is GDU1804SCOM — a spare part that mounts to the GDU1804R or GDU1807R pipes, with holders and small parts included.
For a standard motorcycle that is not the article to order. The kit brings the pipe, the catalysts and the mounting with it.
Fitment & Compatibility
Ducati Hypermotard 821 and Hyperstrada, 2013 to 2015, low-mount configuration. Titanium version: GDU1804TOM. Replacement silencers: GDU1804SCOM in carbon, GDU1804STOM in titanium.
Road Approval
Approved, with catalysts in the Y pipe. Road legal as supplied.
Specifications
- Part number: GDU1804COM
- Type: Three-quarter kit, silencer with pipe
- Design: Force
- Material: carbon fibre silencer, stainless steel pipe
- Pipe: two into one, low mounting
- Catalysts: built into the Y pipe
- Emissions: complies as supplied
- Road approval: approved
- Fitment: Ducati Hypermotard 821 / Hyperstrada (2013-2015)
- Manufacturer: Spark Exhaust Technology, Mantova, Italy
FitmentWhich bikes this fits▼
- Ducati HYPERMOTARD 821
- Ducati Hyperstrada 821
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.