⟲ 360° — drag meThe facts.
| Brand | SC-Project |
|---|---|
| Model | SC1-S |
| Type | Slip-on silencer |
| Part number (Titanium) | Y11B-T124T |
| Part number (Carbon) | Y11B-T124C |
| Main material | Titanium (T.I.G.-welded) |
| End cap | Carbon fibre twill |
| Link pipe | Titanium |
| Homologation | EURO 4 — EC / TÜV road legal |
| Power gain | +1.5 hp at 12,000 rpm |
DescriptionThe whole story▼
Evolved directly from the race-proven SC1-R, the SC-Project SC1-S slip-on silencer represents the pinnacle of Italian exhaust craft — T.I.G.-welded titanium construction, a carbon fibre twill end cap, and a black metal outlet element combine to give the Yamaha YZF-R1/M RN49 an unmistakable racing character without sacrificing road legality.
Key Features
- EURO 4 road-legal homologation — fully compliant with EC and TÜV approval, no modifications required for street use
- Titanium link pipe connects directly to the original catalytic converter for a clean, factory-confident fitment
- CNC-machined titanium collars and T.I.G.-welded titanium joints deliver exceptional dimensional accuracy and long-term durability
- Carbon fibre twill end cap resists sustained heat while projecting an uncompromising track aesthetic
- Includes dB killer and specific block system — aggressive racing acoustics kept within legal sound limits on the road
- No ECU remapping required — bolt on and ride immediately
- Available in two part-numbered variants: Titanium (Y11B-T124T) and Carbon (Y11B-T124C)
Build Quality and Materials
SC-Project's Italian heritage is evident in every weld and machined surface of the SC1-S. The canister body is fabricated from aerospace-grade titanium, joined throughout by hand-finished T.I.G. welds that ensure structural integrity under sustained high-rpm use. CNC-machined titanium collars guarantee a precise slip-on fit with zero play, while heat-resistant acoustic insulation maintains consistent sound character across all operating temperatures. The carbon fibre twill end cap — a hallmark of SC-Project's top-tier range — adds visual drama and genuine thermal performance in equal measure. The black metal outlet element completes the look with a seamless, purposeful finish.
Performance on Road and Track
The SC1-S is engineered to liberate measurable gains over the stock exhaust system. Dyno testing on the Yamaha YZF-R1/M RN49 demonstrates an increase of +1.5 hp at 12,000 rpm and +1.0 Nm of torque at 12,100 rpm, delivered through an optimised exhaust flow path that improves gas scavenging and throttle response across the rev range. The titanium link pipe is shaped to maintain ideal back-pressure characteristics, keeping power delivery smooth and linear whether you are navigating road traffic or chasing lap times. Because no ECU recalibration is needed, the transition from factory exhaust to SC1-S is genuinely straightforward.
Sound Character
The SC1-S is celebrated for a deep, dark, resonant exhaust note that amplifies the crossplane character of the R1 engine without becoming antisocial on the road. A purpose-designed dB killer and block system are included as standard, maintaining legal compliance while preserving the throaty, layered acoustic profile that distinguishes an SC-Project exhaust from any aftermarket alternative. Remove the dB killer for track days and the SC1-S reveals the full-throated voice it inherited from its SC1-R lineage.
Fitment and Compatibility
The SC-Project SC1-S Y11B-T124 is designed and approved for the following motorcycles:
- Yamaha YZF-R1 RN49 (2017, 2018, 2019)
- Yamaha YZF-R1M RN49 (2017, 2018, 2019)
- All EURO 4 variants of the above models
The titanium link pipe mates directly with the original catalytic converter, retaining the standard mid-pipe and collector. No additional brackets or adaptors are required.
Specifications
- Brand: SC-Project
- Model: SC1-S
- Type: Slip-on silencer
- Part number — Titanium: Y11B-T124T
- Part number — Carbon: Y11B-T124C
- Main material: Titanium
- End cap: Carbon fibre twill
- Outlet element: Black metal
- Link pipe: Titanium
- Clamp: Titanium
- Joints: T.I.G.-welded titanium
- Collars: CNC-machined titanium
- Homologation: EURO 4 (EC / TÜV road legal)
- Power gain: +1.5 hp at 12,000 rpm
- Torque gain: +1.0 Nm at 12,100 rpm
- ECU remap required: No
- Fitment: Yamaha YZF-R1/M RN49 (2017-2019)
What's includedEverything in the box▼
- SC-Project SC1-S slip-on silencer (Titanium or Carbon — depending on part number selected)
- Titanium link pipe for direct fitment to the original catalytic converter
- Carbon fibre heat shield
- Mounting springs and bolts
- SC-Project sticker set
- Homologation card for road use
FitmentWhich bikes this fits▼
- Yamaha YZF-R1/M RN49 (2017–2019)
Questions, one topic at a time.
Get the real shipping cost for this item to your address — the same rates as checkout.
Choose a destination and hit Estimate — we fetch the live rates for this item.
We’re based in Germany. Standard delivery goes by DHL and national postal services and takes about 2–5 days within Germany, 1–2 weeks within the EU and 2–6 weeks outside the EU. Need it sooner? Express delivery reaches most of the world within a few days — just choose it at checkout where available.
Your exact shipping cost is calculated by destination and weight and shown at checkout before you pay — no hidden fees. Express delivery is selectable at checkout where available.
Yes, we ship to over 130 countries. Prices, taxes and delivery times for your destination are calculated automatically at checkout.
Within the EU, no — our prices already include all duties and EU VAT. For deliveries outside the EU (e.g. Switzerland, the UK or the USA), your order may be subject to import duties and taxes set by your country. These are collected by the carrier when your parcel arrives, aren’t included in our prices, and are outside our control.
As soon as your parcel ships we email you a tracking link, so you can follow it all the way to your door.
On out-of-stock items you can request a delivery time or leave your email to be notified the moment it returns — just use the notification box on the product.
You have the right to cancel within 14 days of receiving your order. Register your return by email first; once it’s approved you have a further 14 days to send the goods back. Items should be unused and in their original packaging.
Register your return by email with your order number before sending anything back, and we’ll send you the return instructions. Please note: returns that aren’t registered in advance can’t be accepted.
The quickest way is to place a new order for the size you need and register a return for the original by email — just let us know it’s an exchange.
We’re sorry — that shouldn’t happen. Contact us with your order number and a photo as soon as you can, and we’ll arrange a replacement or refund right away. Faulty goods are always covered by your statutory warranty.
Refunds go back to your original payment method, usually within 3–5 working days of your return reaching our warehouse.
PayPal, all major credit and debit cards (Visa, Mastercard, American Express), Klarna (pay later and instalments), Apple Pay, Google Pay and more — all processed securely via PayPal and Mollie.
Yes. Choose Klarna at checkout to split your purchase into flexible monthly installments.
Your payment is taken when you place your order. If you choose Klarna, you pay later according to Klarna’s terms.
Every payment runs over an SSL-encrypted connection through certified providers. We never see or store your full card details.
If your order hasn’t shipped yet, contact us as soon as possible and we’ll do our best to change or cancel it.
No — you can check out as a guest. An account simply lets you track orders and reorder faster.
For customers in the EU, prices are shown including your country’s local VAT. For customers outside the EU, prices are shown without VAT — instead, your country’s import taxes and duties may apply on delivery (see the customs question).
Yes. Your invoice is attached to your order confirmation email and is also available in your account.
Yes. We’re an authorised dealer, so every product is 100% original and comes with the full manufacturer warranty.
Yes. Everything we sell is genuine and comes with the manufacturer’s warranty, on top of your statutory rights. Keep your invoice as proof of purchase and contact us if you ever need to make a claim — we’ll help you through it.
Our team is happy to help. Use the contact button below and we’ll personally help you choose the right gear or part.
Measure your head circumference about one centimetre above your eyebrows and compare it with the size chart on this page. Between sizes? Choose the smaller one — the padding beds in with use.
Yes — it’s tested and approved to the current ECE 22.06 standard and road-legal across the EU.
Most of our touring and sport helmets are Pinlock-ready and many include the insert. Check the ‘What’s in the box’ section on this page for this model.
Yes — the cheek pads are channelled so the arms of your glasses slide in comfortably.
Take out the washable lining and hand-wash it in lukewarm water. Clean the shell and visor with a soft cloth and water only — never solvents.
Our team will personally help you choose the right gear or part — around 24h for a reply.