SC Project 2-1 Stainless steel full exhaust system, with S1 stainless steel exhaust for Aprilia RS457 (2024-26)
The SC Project 2-1 Stainless steel full exhaust system, with S1 stainless steel exhaust for Aprilia RS457 (2024-26) is a performance-focused upgrade developed specifically for the Aprilia RS 457. SC Project combines a 2-1 full exhaust layout with SAE 304 stainless steel construction and an S1 silencer.
Furthermore, the system uses SC Project experience gained through its long-term collaboration with Aprilia Racing. It focuses on performance, weight reduction, sound, durability, and race-inspired styling. Visit our website for more products Dirt Street.
2-1 Full Exhaust System for Aprilia RS 457
The SC Project 2-1 Stainless steel full exhaust system uses a 2-1 configuration with stainless steel headers and a stainless steel link pipe. This layout supports efficient exhaust flow while complementing the Aprilia RS 457 engine.
Moreover, the system uses a bracket mounting design and includes a single lambda probe connection. The installation is completely plug and play and reversible, making the upgrade straightforward.
S1 Stainless Steel Construction
SC Project manufactures the exhaust system from SAE 304 stainless steel. This material provides the system with strong resistance and durability while maintaining its clean, performance-focused appearance.
In addition, the S1 silencer features a conical shape that gives the exhaust an aggressive yet elegant appearance. A riveted aluminium plate with the SC Project logo further enhances its finish.
The exhaust also features a carbon fibre end cap, adding a distinctive racing-inspired detail to the stainless steel construction.
Improved Performance and Weight Reduction
The supplied technical specifications show a performance gain of +2 hp at 5,500 rpm and +2.5 Nm at 5,500 rpm.
At the same time, the system weighs 3 kg, compared with 5.9 kg for the OEM exhaust. Therefore, it provides a 2.9 kg weight reduction compared with the original system.
This reduction can help make the Aprilia RS 457 more agile and responsive. Additionally, the lighter exhaust contributes to the system’s performance-focused design.
Strong and Deep SC Project Sound
The S1 silencer produces strong and deep exhaust notes from the Aprilia RS 457. As engine speed increases, the system delivers the distinctive SC Project exhaust character.
Furthermore, the removable dB-killer allows riders to choose between two sound levels. With the dB-killer installed, the system records 104 dB at 5,500 rpm. Without it, the system records 112 dB at 5,500 rpm.
Removable dB-Killer
The S1 silencer includes a removable dB-killer, giving riders additional sound customization. This feature provides a choice between the two specified sound levels.
However, the exhaust is marked FOR RACING USE ONLY. The supplied information also states that the product does not meet European regulations for road use.
Plug-and-Play Installation
SC Project designed the system for a straightforward installation. The kit installs completely plug and play and remains reversible.
ECU remapping is recommended to obtain the best performance. Additionally, SC Project recommends its ECR+ Electronic Catalytic Remover when removing the catalytic converter, as removal may cause an ECU error.
Racing-Focused Design
The SC Project 2-1 Stainless steel full exhaust system, with S1 stainless steel exhaust for Aprilia RS457 (2024-26) combines stainless steel construction with an aggressive S1 silencer design.
In addition, the carbon fibre end cap and riveted SC Project aluminium logo plate add a distinctive appearance. The system also uses handcrafted TIG welds, reflecting SC Project’s manufacturing approach.
Conclusion
The SC Project 2-1 Stainless steel full exhaust system, with S1 stainless steel exhaust for Aprilia RS457 (2024-26) provides a combination of performance, weight reduction, sound, and race-focused styling.
With a 2.9 kg weight reduction, +2 hp, and +2.5 Nm according to the supplied technical specifications, the system offers a focused upgrade for the Aprilia RS 457. Moreover, its removable dB-killer, plug-and-play installation, SAE 304 stainless steel construction, and carbon fibre end cap make it a distinctive full-system option.
Please note: This product is marked FOR RACING USE ONLY and does not meet European regulations for road use.

















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