SC-Project S1 Slip-On Silencer – Aprilia RSV4 1100 Factory (2021-2024) – Titanium (A27A-T41T)

When track performance is non-negotiable, the SC-Project S1 slip-on silencer for the Aprilia RSV4 1100 Factory delivers exactly what the racetrack demands: a measured +7.7 hp and +6.6 Nm at 8,250 rpm, a weight saving of 3.3 kg, and a race-spec exhaust note drawn directly from SC-Project's MotoGP and WSBK programme. This is the titanium version, part number A27A-T41T — engineered without compromise for riders who want every last tenth on circuit.

Key Features

• Proven power gains of +7.7 hp and +6.6 Nm at 8,250 rpm for a sharper, more responsive power curve
• 3.3 kg weight reduction over the stock silencer, lowering centre of gravity and improving agility
• Conical titanium body with hand-finished T.I.G. welds — race-proven construction that handles sustained high-rpm use
• Titanium end cap paired with a carbon fibre heat shield for heat management and a purposeful, track-derived aesthetic
• CNC-machined titanium collars ensure precise, rattle-free fitment specific to the RSV4 1100 Factory
• Sound level of 123 dB at 6,500 rpm — no dB killer fitted; intended for track and race use

Race-Derived Construction

SC-Project's S1 is not a cosmetic upgrade dressed in racing livery. Every material choice serves a performance function. The titanium link pipe and silencer body shed mass while retaining the structural rigidity needed under the thermal and mechanical stress of extended track sessions. Hand-laid T.I.G. welding, the same process used on SC-Project's competition exhausts, keeps every joint consistent and leak-free. The carbon fibre heat shield wraps the silencer to redirect radiated heat away from rider and bodywork, while the CNC-machined titanium collars guarantee a precise slip-on fit with no shimming or modification required.

Sound & Performance

At 123 dB measured at 6,500 rpm, the S1 produces the deep, hard-edged four-cylinder soundtrack associated with SC-Project's presence in the Superbike World Championship. There is no dB killer in the system — the silencer is tuned for maximum exhaust scavenging and free-flowing gas exit, which is precisely where the additional horsepower and torque figures originate. For riders planning road use, an ECU remap is strongly recommended to realise the full performance benefit and ensure correct fuelling across the rev range.

Fitment & Compatibility

This silencer is a direct, bolt-on fitment for the following motorcycle:

• Aprilia RSV4 1100 Factory — model years 2021, 2022, 2023, 2024

The S1 connects to the original mid-pipe via the included titanium link pipe and mounting bracket. No cutting or welding is required. An ECU remap is recommended for optimal power delivery.

Important Notes

• No dB killer is included or fitted — recommended for track days and racing use only
• An ECU remap is strongly recommended to maximise performance gains
• Price and ordering on request — please contact Inter-Pace directly

Specifications