Pro Circuit Racing
Pro Circuit Racing P/C T-4 GP SYSTEM YZ450F '06-09 # 4Y09450-GP NEW
PRO CIRCUIT T-4 EXHAUST SYSTEM PART# 4Y09450-GP NEW.
- The T-4 System is a tunable version of our more exotic Ti-4R System
- RC-4 Resonance Chamber has been added to the head pipe to reduce noise (The RC-4 Resonance Chamber depending on year of your bike might not come with the system)
- Please contact Pro Circuit for information on replacement parts
