In short
- What it is: the 2G Engineering enlarged intake duct that replaces the stock airbox lid on 1103 cc Ducati Streetfighter V4 from 2025 onwards (V4, V4 S). Filter not included.
- What it fixes: snatchy throttle response and weak midrange pull.
- Result: a big midrange torque increase and much smoother power delivery, with the stock ECU (measured on the 2020-2024 Streetfighter V4).
- Plug & Play and reversible: fits the stock airbox with the stock filter or an aftermarket sport filter.
⚠️ FOR RACE USE ONLY
This product is intended exclusively for competition use on closed circuits. It is not approved for road use: use on public roads is not permitted.
Snatchy throttle and weak midrange on the Streetfighter V4: where they come from
The 1103 cc Desmosedici Stradale V4 is a race engine, but on the road the stock Streetfighter V4 has a few weak spots: snatchy throttle response at low speed, in roundabouts and in traffic, revs that struggle to stay steady at part throttle, and midrange pull that feels less full than you would expect, right where you ride most on the road.
A big part of the problem is how air gets into the airbox: the stock lid that holds the filter lets air in through a few small openings, designed mainly to meet European homologation noise limits.
Why changing just the air filter is not enough
Many Ducati riders start by fitting a sport air filter for the Streetfighter V4. The problem is that the filter works behind the same stock lid: if air can't reach the filter, a more free-flowing filter changes very little. It's like having a marathon runner's lungs and breathing through a straw.
The solution: 2G Engineering Intake for Streetfighter V4
The enlarged lid replaces the factory one that holds the filter with a smooth-flow duct that more than doubles the air flow area: instead of the small stock openings there is a single wide inlet that feeds air across the whole filter surface. It works with the stock filter and with OEM-size aftermarket sport filters. Every part is designed and made in Soliera (Modena), in the heart of the Motor Valley, from carbon-fibre-reinforced PPA.
What changes on the road
- More midrange torque: a big torque increase right in the rev range you use most on the road.
- Much smoother power delivery: throttle response becomes progressive and predictable, even in traffic and slow corners.
- Intake sound: deeper and fuller, especially from the midrange up.
- Free choice of filter: works with the stock filter and with OEM-size aftermarket sport filters.
We haven't published the Streetfighter V4 dyno chart yet: we'll add it to this page as soon as it's ready.
Which version to choose
| Version | What's included | Who it's for |
|---|---|---|
| Kit with 2G sport air filter | Enlarged intake duct + 2G dry polyester filter | Riders still running the stock paper filter |
| Enlarged airbox lid only (this page) | Enlarged intake duct, filter not included | Riders who already have an aftermarket sport filter or want to reuse their own |
| 2G sport air filter only | 2G dry polyester filter, washable | Coming soon |
Compatibility
Ducati Streetfighter V4 and V4 S 1103 cc, 2025 onwards. It fits the stock airbox with no modifications. For the 2020-2024 Streetfighter V4 there is a dedicated version. Not compatible with the Streetfighter V2. Compatible with the original filter and original-size aftermarket sport air filters.
Installation
Installation is Plug & Play: the two half-shells bolt together to form the new duct and filter support, replacing the stock airbox lid. Nothing on the bike is cut or drilled. To remove the stock lid, we recommend cutting the rubber joint between its two half-shells, in a spot hidden behind the headlight: the lid stays reusable and you can go back to stock at any time. Fitting time: about 30 minutes.
Technical specifications
| Compatible models | Ducati Streetfighter V4, V4 S |
|---|---|
| Years | 2025 onwards (1103 cc) |
| Material | Carbon-fibre-reinforced PPA, professional 3D printing |
| Air filter | Air filter not included. Compatible with the stock filter and with OEM-size aftermarket sport filters |
| Result | Big midrange torque increase, smoother power delivery (seen on the 2020-2024 Streetfighter V4, dyno chart coming soon) |
| Remap | Not needed with stock exhaust or catalysed exhausts |
| Installation | Plug & Play on the stock airbox, reversible, no drilling on the bike |
| Installation time | About 30 minutes |
| Package contents | Two intake duct half-shells, mounting hardware. Air filter not included |
| Made in | Italy, Soliera (Modena) |
Frequently asked questions
Is the air filter included?
No. This version includes only the enlarged intake duct. If you also want the filter, choose the kit with 2G sport air filter.
Can I use the stock air filter?
Yes. The enlarged lid works with the stock Streetfighter V4 filter: the improvement comes from the wider air inlet.
Does it work with aftermarket sport filters?
Yes, with OEM-size aftermarket sport air filters.
Do I need to remap the ECU?
No, with the stock exhaust or with aftermarket exhausts that keep the catalytic converter. With a decat race exhaust you need a dedicated map anyway, as with any exhaust of that kind.
Is it better to change the exhaust or the intake?
They do different jobs: the intake works on how much air gets into the engine, the exhaust on how the gases get out. Our kit is designed to deliver results with the stock exhaust and costs a fraction of a full exhaust system.
Does it fit all Streetfighter V4 versions?
This page is for the 1103 cc Streetfighter V4 and V4 S from 2025 onwards. For the 2020-2024 Streetfighter V4 (V4, V4 S, SP, SP2, Lamborghini) there is a dedicated version.
Can I put the bike back to stock?
Yes. Nothing on the bike is cut or drilled. Cutting the rubber joint of the stock lid, which we recommend for a quicker removal, does not stop you refitting it: an interlock holds the two half-shells together and the four screws secure it just as before.
How long does installation take?
About 30 minutes, with a basic home toolkit.
How long does shipping take?
All kits are in stock and ship within 24 hours, worldwide. You have 15 days from delivery to return the product if you're not happy with it.
Let your Streetfighter V4 breathe: add the lid to your cart, we ship within 24 hours.
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