SC-Project CR-T 2-1 Full Exhaust System in Stainless Steel for Aprilia RS 660 (2020–2024)
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Born from SC-Project's development programme for the Trofeo Aprilia Racing RS 660, the CR-T 2-1 full exhaust system brings genuine race-department engineering to your road or track machine. Variable-diameter TIG-welded headers feed the iconic CR-T silencer for a power delivery and soundtrack that no slip-on can replicate — all while shedding 3 kg against the standard system.
Key Features
- Race-proven 2-1 architecture developed directly for the Trofeo Aprilia Racing RS 660 championship
- Variable-diameter TIG-welded connections maximise torque across the rev range
- Significant 3 kg weight reduction over the OEM system for sharper handling and improved power-to-weight
- Iconic SC-Project CR-T silencer delivers an unmistakable, competition-grade exhaust note
- Catalyst-free design optimises exhaust gas flow and reduces under-seat temperatures
- Compatible with the original pillion footpegs — no compromise to passenger practicality
Construction and Finish
The full header assembly is fabricated from AISI 304 stainless steel, chosen for its resistance to heat cycling and long-term corrosion resistance even under sustained track use. TIG welding throughout ensures consistent, gas-tight joins at every junction. A carbon fibre heat shield is fitted to the collector area, providing thermal protection while adding a visual cue straight from the pit lane. Your choice of CR-T silencer — natural carbon or titanium — lets you match the system to your bike's aesthetic without sacrificing a single horsepower.
On Road and Track
Removing the factory catalytic converter and replacing the entire exhaust path with this free-flowing 2-1 system allows the RS 660's parallel-twin to breathe properly. The result is a more responsive throttle, a fuller mid-range, and a top-end that feels noticeably liberated compared to the standard setup. The 3 kg mass reduction sits low and central on the chassis, contributing to more neutral handling — a benefit you will feel from the first corner exit. This system is supplied without a dB killer, so the CR-T voice is unrestricted and entirely characteristic of SC-Project's race-developed products.
Important Notice
This exhaust system is designated Racing Use Only and is not approved for use on public roads. It does not carry road-use homologation and removes the factory catalytic converter. Please ensure compliance with local regulations before fitting.
Fitment and Compatibility
- Aprilia RS 660 — model years 2020, 2021, 2022, 2023, 2024
- Compatible with original pillion footpegs
Specifications
| Attribute | Detail |
|---|---|
| Brand | SC-Project |
| System type | Full exhaust system (2-1) |
| Header material | AISI 304 stainless steel |
| Silencer options | Carbon or Titanium CR-T |
| Heat shield | Carbon fibre |
| Weight saving | 3 kg versus OEM system |
| Part number (Carbon) | A23A-KC36CR |
| Part number (Titanium) | A23A-KC36TR |
| Fitment | Aprilia RS 660 (2020–2024) |
| Warranty | 24 months official SC-Project warranty |
| Use | Racing Use Only — not road-legal |
| Brand | SC-Project |
|---|---|
| System type | Full exhaust system (2-1) |
| Header material | AISI 304 stainless steel |
| Silencer options | Carbon or Titanium CR-T |
| Heat shield | Carbon fibre |
| Weight saving | 3 kg versus OEM system |
| Part number (Carbon) | A23A-KC36CR |
| Part number (Titanium) | A23A-KC36TR |
| Fitment | Aprilia RS 660 (2020–2024) |
| Warranty | 24 months official SC-Project warranty |
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SC-Project CR-T silencer (Carbon or Titanium)
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Complete AISI 304 stainless steel 2-1 header assembly
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Carbon fibre heat shield
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Springs and mounting bolts
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SC-Project sticker set
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// SC-Project
SC-Project CR-T 2-1 Full Exhaust System in Stainless Steel for Aprilia RS 660 (2020–2024)

Tech specs
- Brand
- SC-Project
- System type
- Full exhaust system (2-1)
- Header material
- AISI 304 stainless steel
- Silencer options
- Carbon or Titanium CR-T
- Heat shield
- Carbon fibre
- Weight saving
- 3 kg versus OEM system
- Part number (Carbon)
- A23A-KC36CR
- Part number (Titanium)
- A23A-KC36TR
- Fitment
- Aprilia RS 660 (2020–2024)
- Warranty
- 24 months official SC-Project warranty
- Worldwide shipping
- Genuine parts & verified quality
- 14-day returns — in stock ships within 24h
- Personal email support
// Support
Frequently asked questions
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