SC Project 2-1 S1 Titanium Full System Aprilia RS660 2025

The SC Project 2-1 S1 Titanium Full System is developed from SC-Project’s long-term collaboration with Aprilia Racing

Featuring the beautifully crafted Titanium S-shaped link pipe, tapered S1 Titanium silencer, and a high-quality carbon fibre end cap, this system is a true masterpiece. The precision TIG welds and laser-engraved SC-Project logo showcase the attention to detail, while the system delivers outstanding performance gains and a distinct race-inspired appearance.

Designed for serious riders, this full system offers an impressive power increase of +3.1 hp at 10,000 rpm and +3.1 Nm of torque at 6500 rpm. Thanks to its ultra-lightweight titanium construction, it reduces the bike’s overall weight by 2.5 kg, giving a 40% saving over the stock system and significantly improving agility.

The unmistakable sound from the large S1 outlet hits 114 dB at 5250 rpm, producing a deep, loud, and dark racing tone. Fully reversible and plug-and-play, the system is race-use only and ECU remapping is recommended for optimal results. Pairing this exhaust with the Electronic Catalytic Remover (ECR) is highly recommended to prevent ECU errors when removing the catalyst.

Technical Features

• Power Gain: +3.1 hp at 10,000 rpm
• Torque Increase: +3.1 Nm at 6500 rpm
• Weight Reduction: -2.5 kg (SC 3.9 kg / OEM 6.4 kg)
• Exhaust Line: 2-1 Full System
• Silencer Body: Titanium
• End Cap: Carbon fibre
• Headers: Titanium
• Mounting Type: Bracket
• dB Killer: No
• Racing Use Only: Not road legal
• Noise Level: 114 dB at 5250 rpm
• ECR (Electronic Catalytic Remover highly recommended. Click here for more details

What’s Included

• SC-Project S1 titanium silencer
• Titanium exhaust headers
• Springs and screws
• SC-Project stickers
• 24-month official SC-Project warranty

UK Stock Items: Orders for items held in UK stock are normally dispatched within 24 hours.

Supplier Items: Items sourced from suppliers are usually dispatched within 5–10 working days once they arrive with us.

Order Cut-Off: Orders placed before 2PM (Monday to Friday) are typically dispatched the same working day, subject to stock availability.

International Delivery: We ship worldwide. Most international orders arrive within 7 working days from dispatch, though delivery times can vary depending on destination and customs processing.

Courier Responsibility: Once an order has been dispatched, delivery timescales are determined by the courier. Tracking information will be provided where available.

Customer Responsibility: Customers must ensure safe receipt of their order. Additional charges may apply if repeated delivery attempts fail due to no one being available, or if incorrect delivery information has been supplied.