⟲ 360° — drag meThe facts.
| Brand | SC-Project |
|---|---|
| Model | Trofeo SC1-R |
| Type | Full exhaust system, 2-1 |
| Fitment | Aprilia RS 660 (2020–2024) |
| Header material | Titanium |
| Silencer material | Carbon or Titanium |
| End cap material | Carbon |
| Part number (Carbon) | A23A-PTC90C |
| Part number (Titanium) | A23A-PTC90T |
| Weight saving | -3.1 kg (stock 6.4 kg / SC-Project 3.3 kg) |
DescriptionThe whole story▼
Born from the official Aprilia Racing Trofeo programme, the SC-Project Trofeo SC1-R 2-1 full exhaust is the definitive track system for the RS 660. Every component — from the full titanium header to the SC1-R silencer — carries the lineage of factory racing, delivering a weight reduction, a power gain and a sound signature that no street-legal system can match.
Key Features
- Developed directly with Aprilia Racing for the official RS 660 Trofeo race programme
- Full titanium 2-1 header construction — weight drops from 6.4 kg (stock) to 3.3 kg, a saving of 3.1 kg
- Measured power gain of +3.6 PS and +2.7 Nm, both at 9,250 rpm
- Deep, purposeful racing note: 101 dB at 5,250 rpm with dB-killer fitted, 105 dB without
- SC1-R silencer available in natural titanium or carbon finish — both with carbon end cap
- Supplied with dB-killer, lambda sensor provision, single-seat exhaust bracket, all fixings and springs
- 24-month official SC-Project warranty included
Design, Finish and Heritage
The Trofeo system is not a universal aftermarket exhaust dressed up in racing colours — it is a purpose-built race tool that was shaped alongside the RS 660 from the ground up. The titanium header reflects SC-Project's long collaboration with MotoGP and World Superbike programmes: raw, brushed titanium that ages with character on the track, paired with an SC1-R canister that is available either in matching titanium or in woven carbon. Both finishes are defined by the carbon end cap, giving the system a visual coherence that looks as deliberate on the paddock stand as it does at speed.
The single-seat mounting bracket is integral to the design intent. Removing the pillion footpegs is recommended — they are not compatible with this system — and the result is an aggressive, tail-up stance that signals exactly what this machine is built for.
Performance and Sound
With the lambda sensor provision retained and a plug-and-play fit direct from the Aprilia Racing parts programme, installation is straightforward. The 2-1 collector geometry is optimised for the RS 660's parallel-twin characteristics, broadening mid-range torque while the titanium mass reduction lowers rotational and unsprung weight simultaneously. The dB-killer is included for circuits that enforce noise limits, keeping the system at 101 dB at 5,250 rpm — remove it and the system opens to a full 105 dB race note.
Fitment and Compatibility
This exhaust is designed exclusively for the Aprilia RS 660, model years 2020 to 2024. It is a race-only product with no road type approval. Removal of the pillion footpegs is recommended as they are not compatible with the single-seat bracket supplied.
Race use only — not approved for use on public roads.
Specifications
- Type: Full exhaust system, 2-1 configuration
- Header material: Titanium
- Silencer material: Carbon or Titanium (variant dependent)
- End cap material: Carbon
- Mounting: Single-seat exhaust bracket (included)
- Weight saving: -3.1 kg (stock 6.4 kg / SC-Project 3.3 kg)
- Power gain: +3.6 PS at 9,250 rpm
- Torque gain: +2.7 Nm at 9,250 rpm
- Sound level (with dB-killer): 101 dB at 5,250 rpm
- Sound level (without dB-killer): 105 dB at 5,250 rpm
- dB-killer: included
- Lambda sensor provision: yes
- Part number (Carbon): A23A-PTC90C
- Part number (Titanium): A23A-PTC90T
- Warranty: 24 months (official SC-Project)
- Use: Race only — no road type approval
What's includedEverything in the box▼
- SC-Project SC1-R silencer (Carbon or Titanium, variant dependent)
- Complete titanium 2-1 header
- Single-seat exhaust bracket
- All mounting hardware including springs and bolts
- dB-killer
- SC-Project sticker set
FitmentWhich bikes this fits▼
- Aprilia RS 660 (2020–2024)
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