Spark Exhaust Force Evo Silencer Group 350 mm with Carbon Cover Aprilia RS 660 / Tuono 660 (2020-2026) GAP8807ST
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The rear half of Spark's 660 system: the 350 millimetre Force Evo case in titanium, the carbon cover that goes over the connection, and a removable dB killer in the box.
Key Features
- Force Evo silencer group for the Aprilia RS 660 and Tuono 660, 2020 to 2026.
- 350 mm titanium body with carbon end cap.
- Carbon cover included.
- Removable dB killer supplied in the box.
- Fits Spark's titanium collector GAP8806.
- Racing part, no homologation.
The Cover Earns Its Place
Spark says plainly that the carbon cover is not only there to look good. On a bike with rear-set footrests it sits between the rider's boot and the pipe, and at exhaust temperature that is a job worth having done.
It is included with this group rather than sold separately, which is the sensible arrangement — a silencer group without it would leave the connection bare on exactly the machines most likely to need it.
Where the Rib Comes From
The Force Evo case is the ribbed one: a line runs back along the titanium body and converges towards the carbon end cap. It stiffens the sleeve so the wall can stay thin, and it is what tells a Force Evo apart from the smoother Konix Evo that fits the same collector.
The 400 mm version of the same case is fitted to the complete system GAP8809T. This group is the 350.
A dB Killer in the Box
Spark supplies the removable insert with the silencer rather than as an accessory. Fitted, it brings the sound down for events that measure; out, it is the configuration the case was designed around.
Whether removing it is permitted at your event is the organiser's call and varies between clubs more than most riders expect.
Fitment & Compatibility
Aprilia RS 660 and Tuono 660, 2020 to 2026, on Spark's titanium collector GAP8806. Bought together the two are listed as GAP8806+GAP8807ST at 1,964 euro. The Konix Evo and Grid-O systems on the same collector are GAP8806T and GAP8808T.
Road Approval
None. Racing part, closed course only.
Specifications
- Part number: GAP8807ST
- Type: Silencer group
- Design: Force Evo
- Material: titanium, carbon end cap
- Length: 350 mm
- Included: carbon cover, removable dB killer
- Road approval: none, track use
- Fitment: Aprilia RS 660 / Tuono 660 (2020-2026)
- Manufacturer: Spark Exhaust Technology, Mantova, Italy
| Part number | GAP8807ST |
|---|---|
| Type | Silencer |
| Silencer design | Force evo |
| Material | Titanium |
| Dimensions | 350 mm long |
| Fitment | Aprilia RS 660 / TUONO 660 (2020-2026) |
| Road approval | None — track use only |
| Origin | Made in Italy |
- Aprilia RS 660
- Aprilia TUONO 660
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// Spark Exhaust
Spark Exhaust Force Evo Silencer Group 350 mm with Carbon Cover Aprilia RS 660 / Tuono 660 (2020-2026) GAP8807ST

Tech specs
- Part number
- GAP8807ST
- Type
- Silencer
- Silencer design
- Force evo
- Material
- Titanium
- Dimensions
- 350 mm long
- Fitment
- Aprilia RS 660 / TUONO 660 (2020-2026)
- Road approval
- None — track use only
- Origin
- Made in Italy
- Worldwide shipping
- Genuine parts & verified quality
- 14-day returns — in stock ships within 24h
- Personal email support
// Support
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