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Ships within 48 hours · Estimated delivery Aug 23 - Aug 28
multi-panel main shell construction for durability and comfort
Jet Kit - Yamaha YFM660 Grizzly
Coarse Stainless steel American made packing material
Custom-tailored for snocross competition and tested and proven by professional race teams
DYNOJET Jet Kit - Yamaha R1 4165 100% multi-panel main shell construction forJet Kit Yamaha R1 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 power and