a larger spark arrestor is included with the tailpipe
Uses four clutch weights to greatly enhance tuneability
No fuel modifications needed on a stock or slightly modified machine
even with gloved hands
Alpinestars print logo on chest and back
DYNOJET Jet Kit - Yamaha XV1700 Road/Star 4176 100% a larger spark arrestor isJet Kit Yamaha XV1700 Road Star Stage 1: stock engine filters, stock modified pipes; about a 5% power increase, Stage 2: stock mild modified engine, stock modified pipes, stock modified filters; about an 8% power increase, Stage 3: stock mild modified engine, stock modified pipes, individual air filters; driveability may be compromised, N A for some motors; about a 10 15% power increase, Stage 7: race only, high rpm, not for street use, Increases