⟲ 360° — drag meThe facts.
| Part number | GDU8838T |
|---|---|
| Type | Half system |
| Silencer design | Rectangular |
| Material | Titanium |
| Spark weight | 4.9 kg |
| Standard weight | 6.4 kg |
| Weight saving | 1.5 kg |
| Fitment | Ducati V4 / V4 S / V4 R / STREETFIGHTER V4 (2018-2023) |
| Road approval | None — track use only |
| Origin | Made in Italy |
DescriptionThe whole story▼
Spark developed this kit with Team Go Eleven, the outfit that runs a Ducati V4 R in the Superbike World Championship. The rectangular silencer was not a styling exercise — it was the shape that let the team stay inside a tightening decibel ceiling without giving up flow, and it reads 102 dB.
Key Features
- Titanium collector with two rectangular silencers in the underseat position — the EVO 2023 development.
- 102 dB, one of the lowest readings Spark offers for the Panigale V4.
- Developed together with Team Go Eleven for the Ducati V4 R in WorldSBK.
- 4.9 kg against 6.4 kg for the section replaced.
- Compatible with the original fairings and with closed racing bodywork.
- Panigale V4, V4 S, V4 R and Streetfighter V4.
Why Rectangular
A round case is easier to build and stiffer for its weight. A rectangular one is chosen when the space it has to occupy is not round — and underneath a Panigale V4's tail unit, the available volume is a flattened wedge. Filling that volume with a rectangular case gets more absorption material into the same envelope than a cylinder can, and absorption volume is what brings decibels down.
That is the whole engineering argument, and it is why this kit and the Dyno kit sit at the quiet end of Spark's V4 range while the round Grid-O sits at the loud end.
The Go Eleven Connection
Spark describes this as an addition to the kit dedicated to the Ducati V4 R in Superbike, presented together with Team Go Eleven. That matters more than a sticker: a silencer developed to pass championship scrutineering has been measured under the same conditions your local circuit is trying to replicate, rather than tuned for a dyno graph and measured afterwards.
Titanium Where It Counts
The collector on this kit is titanium end to end, and on a V4 that is a bigger deal than on a twin. Four cylinders feeding one collector means four heat sources converging in a space the size of a shoebox, directly under the rider. Titanium holds its geometry through that better than stainless does, and it sheds the mass at the point on the motorcycle where mass is least welcome — high, central and directly above the swingarm pivot.
The 4.9 kg quoted is for the complete kit. Against the 6.4 kg of standard hardware it replaces, the saving is modest by Spark's standards — the rectangular silencers carry more absorption material than the Grid-O cases do, and that material weighs something. You are buying quiet, not lightness, and the kit is honest about which.
Installation
- ECU mapping is recommended.
- Compatible with the original fairings and with closed fairings for racing use.
- Not compatible with passenger footboards.
Fitment & Compatibility
Ducati Panigale V4, V4 S, V4 R (2018-2024) and the Streetfighter V4. If you want the same rectangular silencers on a mixed stainless and titanium manifold at a lower price, that is GDU8848T.
Road Approval
None. A championship-derived kit with no EC certificate and no catalytic converter — the 102 dB figure is there to satisfy race scrutineering, not road registration.
Specifications
- Part number: GDU8838T
- Type: 3/4 kit, underseat, twin silencers
- Silencers: 2× Rectangular, EVO 2023
- Collector: Titanium
- Spark weight: 4.9 kg
- Standard weight: 6.4 kg
- Weight saving: 1.5 kg
- Sound level: 102 dB
- Developed with: Team Go Eleven, WorldSBK
- Fitment: Ducati Panigale V4 / V4 S / V4 R / Streetfighter V4 (2018-2024)
- Road approval: None — track use only
- Manufacturer: Spark Exhaust Technology, Mantova, Italy
FitmentWhich bikes this fits▼
- Ducati STREETFIGHTER V4
- Ducati Panigale V4
- Ducati Panigale V4 R
- Ducati Panigale V4 S
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