2021-on Yamaha MT-09 CS Racing Full Exhaust | Muffler + Headers + dB Killer

CS Racing Exhausts are meticulously handcrafted in Brazil using premium materials.

Key Features:

• Astonishing sound
• Sleek design
• Enhanced gas outflow
• In-house dyno tested for maximum gains
• Horsepower gains specified below
• Improved response at mid/high-range RPM
• Significant weight savings
• Each piece is tested and verified before shipment
• 100% stainless steel (304 and 409) construction with precise laser cutting 
• Stainless steel Allen bolts
• High-quality pressed fiberglass cover with even thickness, smooth interior, and durable texturized hi-temp paint that complements your bike's design
• dB Killer Included
• Reinforced fittings
• O2 Sensor Bung (for full exhaust or as needed)
• 1-year full warranty

The O2 sensor harness has to be released and re-routed through the right side of the radiator to reach the right position. Another option is to use a lambda sensor extension set for Yamaha (not included).

The O2 extension can be found here 

Performance Boost: The additional HP was obtained without any tuning. If you're looking for even more power and improved throttle response, you might want to consider a race ECU map or a mapped PCV. 

Discount code: CSRACING

https://bt-moto.com/product/2015-2024-yamaha-mt-09-stage-1-performance-calibration-with-handheld

Important Note: All CS Racing Full exhausts feature the removal of the catalytic converter. Some slip-on models may keep both or remove the main catalytic converter while retaining the high-flow cat in the headers. As a result, these exhausts do not comply with European regulations and may not meet street legal requirements in certain countries.

Please be aware: Import duties and taxes may apply and vary depending on your country. We are not responsible for these charges, and return shipping costs are the customer's responsibility.