Description
SC Project Exhaust Yamaha YZF-R9 3-1 Stainless Steel Full System + SC1-R Silencer 2025+
Have your Yamaha look and sound as it should, straight from the factory, with this beautifully designed SC Project exhaust.
The new Yamaha YZF-R9 is the flagship of the Yamaha R-series, built for lightness, performance, and riding pleasure. In this spirit, SC-Project has developed a full exhaust system that takes the R9’s dynamics to the next level.
Compared to the OEM exhaust, this system cuts weight by over 35%, improving handling and agility. It delivers gains of up to +6.5 hp and +4.5 Nm at 9,500 rpm, with a smoother, stronger power curve across the low and mid-range.
Headers are made from durable AISI 304 stainless steel, while the link pipe uses ultra-lightweight titanium. The top-of-the-range SC1-R muffler combines premium materials with advanced technologies such as handcrafted TIG welds, a hydroformed asymmetrical outlet, and a sporty carbon-fibre end cap. The 300 mm carbon-fibre silencer body features an aluminium riveted plate with a 3D-embossed SC-Project logo, identical to our Racing Department components.
For noise-restricted trackdays, the silencer includes a removable baffle, giving you a choice between 101 dB at 5,000 rpm with the dB-killer installed or 103 dB at 5,000 rpm without it.
The kit is 100% plug-and-play and fully reversible. ECU remapping is recommended for best performance, and a dedicated premium carbon-fibre heat shield is included.
We also strongly recommend the SC-Project ECR+ (Electronic Catalytic Remover). Removing the catalytic converter can trigger ECU errors; the ECR+ connects to the OBD socket and automatically manages these, restoring proper operation of the on-board electronics. It features an LED status indicator and an OBD cable splitter so you can still connect another device. You’ll find it in the related products section.
FEATURES
SC-Project – a factory with leadership in the manufacture of high-quality motorbike exhaust systems. SC Project is firmly established in the racing world, and this guarantees the final customer the highest performance without compromise. Sc-Project commitment in the racing world is set in a world contest in the championships of the highest level, such as MotoGP, SBK, Moto2 and Moto3 World Championship and in the most important motorbike Championships of the World.
Technology and excellence, with no compromise, that is our philosophy





















