Table of Contents
- What's Included in Your ducati st4 1999 – 2005 Exhaust Fitment Kit
- Fitment and Installation Guide for the ducati st4 1999 – 2005
- Installation Tips Specific to the ducati st4 1999 – 2005
- Why Choose Max Torque Cans for Your ducati st4 1999 – 2005
- Frequently Asked Questions About the ducati st4 1999 – 2005 Exhaust Fitment
The ducati st4 1999 – 2005 stands out as one of the finest sport-touring motorcycles ever to emerge from the Ducati factory in Bologna, combining the raw performance of a superbike engine with the practicality and comfort needed for serious distance riding. If you’re looking to elevate your ST4’s performance, soundtrack, and overall character, upgrading the exhaust system is one of the most rewarding modifications you can make.
At Max Torque Cans, we’ve developed a precision-engineered performance exhaust fitment specifically for the ducati st4 1999 – 2005 that delivers meaningful gains in flow, throttle response, and auditory satisfaction — all while maintaining the reliability and usability that makes the ST4 such a brilliant all-rounder. Whether you’re carving through Alpine passes, commuting through the week, or simply want your Ducati to sound as purposeful as it looks, this exhaust upgrade is designed with you in mind.
What’s Included in Your ducati st4 1999 – 2005 Exhaust Fitment Kit
We believe in supplying complete, ready-to-fit kits with everything you need to carry out a confident, professional installation at home. Every exhaust fitment for the ducati st4 1999 – 2005 arrives with no hidden extras and no frustrating trips to the local fastener supplier. Here’s exactly what you’ll find inside the box:
- 2 x Stainless 304 CNC Mandrel Bent Link Pipes — precision-formed to guarantee a perfect fit to the ST4’s standard OEM downpipes
- 2 x Stainless Exhaust Straps — heavy-duty, corrosion-resistant mounting straps engineered for long-term durability
- 2 x Exhaust Strap Rubbers — high-quality vibration-dampening rubbers that protect your silencer mounting points and reduce unwanted resonance
The use of Grade 304 Stainless Steel throughout the link pipes is a deliberate choice. This material offers exceptional resistance to heat, corrosion, and the salt-laden conditions of British roads — exactly what you need from a performance exhaust on a machine designed to cover serious mileage in all weathers. The CNC mandrel bending process is equally important: it ensures the internal diameter of each link pipe remains consistent throughout every bend, eliminating the restrictions you’d find in cheaper crush-bent alternatives.
The result is a smooth, uninterrupted flow of exhaust gases, which translates directly into improved throttle response, a cleaner mid-range, and more linear power delivery across the entire rev range.
Fitment and Installation Guide for the ducati st4 1999 – 2005
This performance exhaust fitment is engineered to bolt straight onto the standard OEM downpipes of the ducati st4 1999 – 2005, covering all model years from 1999 through to 2005. There’s no cutting, no welding, and no specialist workshop equipment required — this is a clean, straightforward upgrade that any competent home mechanic can complete with basic hand tools and a little patience.
Before you begin, we’d always recommend giving the OEM downpipe connections a thorough clean to remove any carbon build-up or corrosion that may have accumulated over the years. A light application of copper grease on the slip joints will make future removal considerably easier and help prevent the pipes from seizing over time. Ensure the engine is fully cooled before you start work, and always torque all fixings to the manufacturer’s specifications once you’re done.
Installation Tips Specific to the ducati st4 1999 – 2005
The ST4’s V-twin engine layout means access to the lower exhaust mounting points can be a little tight, so it’s well worth removing the lower fairing panels before you begin — doing so will make the entire job considerably more straightforward and reduce the risk of scratching your bodywork. Offer both link pipes up loosely before tightening anything fully, as this allows you to align everything correctly and ensure the silencers hang true before you commit.
Once you’re satisfied with the positioning, work from front to back, tightening progressively rather than fully torquing one point at a time. This approach prevents undue stress on the stainless pipes and gives you the cleanest, most professional-looking finish.
Once fitted, start the engine from cold and allow it to reach full operating temperature before heading out for your first ride. You may notice a light smoke or smell from the new stainless components during this initial heat cycle — this is completely normal and will disappear after a short run. For more detailed guidance on exhaust systems and performance upgrades, the Motorcycle.com Ducati resource centre offers a wealth of technical information and enthusiast advice.
Why Choose Max Torque Cans for Your ducati st4 1999 – 2005
At Max Torque Cans, we’re not a faceless warehouse operation shipping generic parts. We’re a UK-based team of motorcycle enthusiasts who understand exactly what riders want from a performance exhaust upgrade. Every product we sell is chosen and tested with real-world use in mind, and our fitments for machines like the ducati st4 1999 – 2005 are developed with a clear focus on quality, ease of installation, and long-term durability.
We stock a comprehensive range of Ducati-specific exhaust solutions, so if you own or are looking for fitments for other models in the Ducati range, take a look at our dedicated category pages. If your interest extends to other sporting Ducati twins, you might also want to explore our DUCATI ST2-ST3 fitment page, which covers the closely related sport-touring siblings of the ST4 and uses a similarly straightforward installation process.
We also cater for classic Ducati owners — our Ducati 900SS 1988 – 2007 page is well worth a visit if you’re running one of those iconic Supersport models alongside your ST4.
Frequently Asked Questions About the ducati st4 1999 – 2005 Exhaust Fitment
Will this fit my ST4S as well as the standard ST4? — The link pipes are designed specifically for the ducati st4 1999 – 2005 range. If you have an ST4S, please get in touch with us directly before ordering to confirm fitment compatibility.
Do I need to remap my ECU after fitting? — In most cases, fitting a performance exhaust on the ducati st4 1999 – 2005 without removing the catalytic converter does not require a remap. However, if you’re making multiple modifications simultaneously, a professional remap will always help you extract the most from your setup.
Will this pass an MOT? — Provided the silencer you’re using meets noise and emissions standards, this fitment is road-legal. Always check with your chosen tester if you’re unsure.
Is stainless steel better than titanium? — Stainless 304 is heavier than titanium but is considerably more cost-effective and highly resistant to the harsh conditions of UK roads. For a sport-tourer like the ducati st4 1999 – 2005, it’s an excellent practical choice.
How long will delivery take? — We despatch from the UK and aim to get your order to you as quickly as possible. Check the product listing for current lead times.
If you have any further questions about fitting this performance exhaust to your ducati st4 1999 – 2005, don’t hesitate to get in touch with the Max Torque Cans team. We’re always happy to help.
| Material | White, Polished Stainless Steel, Satin Stainless Steel, Titanium, Carbon, Black, Blue |
|---|---|
| Shape | Round GP, Oval, Round, Tri Oval |
| Outlet | Evo Outlet, GP Pro Outlet, Single Outlet, Twin Outlet, Carbon Outlet |
| Type | Race, Road Legal |
Outlet
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Single Outlet – single 54mm diameter rolled outlet. Best performing outlet in a road-legal /race. Simple and effective. |
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Twin Outlet – twin 40mm diameter rolled outlets. This has the ‘best of both worlds’, quieter than the single outlet with baffles inserted, and Louder than the single outlet with the baffles removed. (Both outlets working in the road-legal form). |
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Carbon Outlet -Our superior outlet range with a choice of a smooth, sleek Oval, ultra-modern Tri-oval, and now our all-new for 2020 Round outlet. These outlets give your exhaust the distinctive, expensive finish without the expensive price tag. |
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GP Pro Outlet – Comes with a large 63mm diameter slash-cut finish, and can come with and without road-legal baffles. |
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The Evo Outlet – Is a new, modern 2020 design. The sleek, tapered lines compliment any road – track or race bike |
Materials
Our Exhausts are internally constructed in stainless steel and the outer sleeve can be made in stainless steel, titanium or carbon fiber. MTC ONLY uses the best grade materials.
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Polished Stainless Steel – Grade T304 + T409 (a single slip-on exhaust normally weighs 1.9 kilos). |
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Satin Stainless Steel – Grade T304 + T409 (a single slip-on exhaust normally weighs 1.9 kilos). |
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Titanium – Grade 2 + 3 mill finish (a single slip-on exhaust normally weighs 1.7 kilos). |
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Carbon Fibre – 4 x 4 twill prepreg autoclave cured, foiled lined (a single slip-on exhaust normally weighs 1.2 kilos). |
Our coloured exhausts have stainless steel sleeves that are painted prior to assembly. The item is electrostatically coated with high-grade polyester powder and cured at 200º-220º deg C giving a durable, smooth and U.V. resistant finish with excellent colour retention. Colours available are matt black, gloss white and gloss blue.
Shape
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Round GP – Ø98mm Our smaller round exhaust shape and is usually 250mm Long (this exhaust shape is perfect for the customer who wants a louder sound on a standard sized bike). |
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Round – Ø110mm Our Normal-sized exhaust shape and can come in sizes from 250mm to 450mm Long. (This is our standard sized exhaust and performs excellently on most bikes). |
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Oval – working from 110mm Ø is sized 98mm wide and 122mm High and can come in sizes from 250mm to 450mm Long. (This is our slimmest design, for inverted under-seat exhausts, or for customers/Racers who need the slimmest streamlined spacers to ride through). |
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Tri Oval – working from 110mm Ø is sized 98mm wide and 122mm High and can come in sizes from 250mm to 450mm Long. (This is our Premium shaped design. (Designed back in 2002′ our company was the first in the UK to produce this exclusive shape, have a look around and see how many UK companies have copied us!!). |
3D View
Please click on the exhaust below to see the 3D model
Gallery
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Fitting Guide
Please use this fitting guide as help when fitting our exhausts, or call our landline for advice if needed.
Road Legal / Race
All our Road Legal exhausts come with a Road Legal Baffle / Decibel Killer + BSAU ( British Road-Legal ) markings.
All our RACE exhausts do not come with a Road Legal Baffle / Decibel Killer + do not have any BSAU ( British Road-Legal ) markings. and are marked NOT FOR ROAD USE
2024 Road legal exhaust statement:
At Max Torque Cans we prioritise safety and compliance in the world of motorcycle exhausts. Our commitment to adhering to regulations is evident in our product design and labelling, and hence with new updates from ACEM, DVSA and DfT, we are ensuring our exhaust systems are compliant with new and upcoming legislation and regulations. Specifically, two changes detailed below:
Road Legal Exhausts: Our road legal exhausts will have the BSAU stamped markings and be crafted with non-removable baffles, aligning seamlessly with the standards set by ACEM (European Association of Motorcycle Manufacturers). These baffles are an integral part of our design to ensure that your motorcycle exhaust complies with road regulations, providing you with a legal and enjoyable riding experience.
Race Exhausts and Silencers: For those seeking an exhilarating experience on the track, our race exhausts are engineered to deliver optimal performance. Clearly marked with type approval markings “Not for Road Use” etched into the side, these exhausts are specifically designed for racing applications. This distinction is in line with DVSA policy, ensuring that our race exhausts are suitable for track use, meeting the highest performance standards without compromising on safety.















































































































































































