SC-Project Slip-On GP70-R + catalytic converter delete pipe Yamaha YZF-R1/M RN65 (20-26) Y11C-DET70
SC-Project Slip-On GP70-R + catalytic converter delete pipe Yamaha YZF-R1/M RN65 (20-26) Y11C-DET70
Delivery time on request
SC-Project Slip-On GP70-R + KAT replacement pipe for Yamaha YZF-R1/M RN65 (20-26) – Ultimate racing performance!
Developed for maximum power & sound
The SC-Project GP70-R slip-on with KAT replacement pipe is the perfect choice for riders who want to experience pure racing DNA. This high-performance exhaust system combines aggressive retro styling with state-of-the-art titanium and carbon technology.
The GP70-R makes your Yamaha YZF-R1/M RN65 (20-26) unique, offers a significant reduction in weight, and delivers brutal MotoGP sound. The model is available in both titanium (Y11C-DET70T) and carbon (Y11C-DET70C), each with a high-performance de-cat titanium link pipe.
Attention: The current images show the RN49 – images of the RN65 will follow soon!
Maximum performance & extreme weight savings
With the GP70-R, you get a high-quality, race-proven exhaust solution that makes your Yamaha noticeably lighter & more powerful.
✔️ Weight savings: -6.2 kg (SC: 1.8 kg vs. stock: 8 kg)
✔️ Titanium KAT replacement pipe for maximum performance & optimized exhaust flow
✔️ Improved throttle response & optimized airflow
✔️ Available in two versions: titanium (Y11C-DET70T) & carbon (Y11C-DET70C)
Thanks to the CNC-machined bushings and T.I.G.-welded joints, the GP70-R guarantees maximum stability and durability.
MotoGP sound – uncompromising & unmistakable
The GP70-R produces a pure & unfiltered racing sound, inspired by the SC-Project MotoGP teams.
✔️ Without dB killer – uncompromising racing sound with 123 dB @ 6500 rpm
✔️ Diameter Ø70 mm for maximum acoustic performance
✔️ Deep, aggressive sound character with unmistakable MotoGP signature
This slip-on system brings ultimate track sound to your Yamaha!
High-quality materials & premium workmanship
The GP70-R slip-on is available in two high-quality versions:
✔️ Titanium version (Y11C-DET70T): Laser-cut SC-Project logo for a premium racing look
✔️ Carbon version (Y11C-DET70C): Rivets with SC-Project badge, as on factory race bikes
Further features:
✔️ Titanium link pipe for maximum temperature resistance & performance
✔️ CNC-machined bushings & hand-welded titanium joints for maximum precision
✔️ Compatible with original passenger footrests
✔️ Prepared for the original lambda sensor connection
This extremely lightweight and aggressive racing exhaust solution is designed for anyone who wants to extract maximum performance from their Yamaha YZF-R1/M.
Scope of delivery – everything included for installation
✔️ GP70-R slip-on silencer (titanium or carbon – depending on part number)
✔️ De-cat titanium link pipe for maximum performance
✔️ Mounting springs & screws for perfect fitment
✔️ SC-Project sticker for the racing look
✔️ 24-month official SC-Project warranty
This kit is ready-to-race – uncompromising performance straight from motorsport!
Part numbers – choose your preferred version
- Titanium version: Y11C-DET70T
- Carbon version: Y11C-DET70C
Important notes
NO road approval – for racing use only (FOR RACING USE ONLY)
Price & order on request only !!!
Enquire now & give your Yamaha YZF-R1/M the ultimate racing look & MotoGP sound!
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About Us
About Us
Our passion for quality and innovation drives us to offer you the best products and services for motorcycle enthusiasts. From exclusive high-performance parts to tailor-made solutions — your riding experience is at the center of everything we do.
Shipping & Returns
Shipping & Returns
We ship with DHL and FedEx — if requested, also via express. If an item is in stock, shipping via express can, in many cases, be delivered within 1 business day. Standard delivery time is typically about 2–5 business days within the country, and worldwide usually about 1 week. Please check the available shipping options and transit times in the cart, as we offer several shipping providers depending on the country.
Returns must be registered in advance by email and are possible according to our return policy (14 days to request a return + 14 days return shipping deadline after approval). Please note: Unregistered returns will not be accepted. You can find all details on the terms, exceptions, and refunds in our return policy.
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More information in our FAQs
Write to our team via email – we’ll get back to you as quickly as possible.
How long does it take to process my order?
How long does it take to process my order?
If the item is in stock, we usually process your order very quickly; in many cases it can even be shipped the same day.
Our processing times are Monday to Friday, 07:30–16:30.
Do you ship internationally?
Do you ship internationally?
Yes, we ship worldwide. Shipping is carried out depending on the country and the selection, via DHL or FedEx.
What is your return policy?
What is your return policy?
Returns must be registered in advance by email. You can request a return within 14 days of receiving the item and, after approval, you have another 14 days to send it back.
Important: Unregistered returns are not accepted. All details can be found in our cancellation policy.
What does “delivery time on request” mean?
What does “delivery time on request” mean?
“Delivery time on request” means the item is generally not in stock right away and may need to be ordered separately. Please contact us before purchase – we’ll check availability and tell you the estimated delivery time.
Do you offer express shipping?
Do you offer express shipping?
Yes, we offer express shipping. If an item is in stock, in many cases shipping can be completed within 1 business day (depending on the country and shipping option). You can see the available shipping methods in the shopping cart.

