Description
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.)
Fitment
Yamaha TT-R90 2000
Yamaha TT-R90 2001
Yamaha TT-R90 2002
Yamaha TT-R90 2003
Yamaha TT-R90E 2003
Yamaha TT-R90E 2004
Yamaha TT-R90E 2005
Yamaha TT-R90E 2006
Yamaha TT-R90E 2007
