Jet Kits

Stage 1: stock engine/filters, stock/modified pipes; about a 5% power increaseStage 2: stock/mild modified engine, stock/modified pipes, stock/modified filters; about an 8% power increaseStage 3: stock/mild modified engine, stock/modified pipes,...

Stage 1: stock engine/filters, stock/modified pipes; about a 5% power increaseStage 2: stock/mild modified engine, stock/modified pipes, stock/modified filters; about an 8% power increaseStage 3: stock/mild modified engine, stock/modified pipes,...

Stage 1: stock engine/filters, stock/modified pipes; about a 5% power increaseStage 2: stock/mild modified engine, stock/modified pipes, stock/modified filters; about an 8% power increaseStage 3: stock/mild modified engine, stock/modified pipes,...

Stage 1: stock engine/filters, stock/modified pipes; about a 5% power increaseStage 2: stock/mild modified engine, stock/modified pipes, stock/modified filters; about an 8% power increaseStage 3: stock/mild modified engine, stock/modified pipes,...

For jetting most stock and performance enginesMade in the U.S.A.

Stage 1: stock engine/filters, stock/modified pipes; about a 5% power increaseStage 2: stock/mild modified engine, stock/modified pipes, stock/modified filters; about an 8% power increaseStage 3: stock/mild modified engine, stock/modified pipes,...

Stage 1: stock engine/filters, stock/modified pipes; about a 5% power increaseStage 2: stock/mild modified engine, stock/modified pipes, stock/modified filters; about an 8% power increaseStage 3: stock/mild modified engine, stock/modified pipes,...

Stage 1: stock engine/filters, stock/modified pipes; about a 5% power increaseStage 2: stock/mild modified engine, stock/modified pipes, stock/modified filters; about an 8% power increaseStage 3: stock/mild modified engine, stock/modified pipes,...

Stage 1: stock engine/filters, stock/modified pipes; about a 5% power increaseStage 2: stock/mild modified engine, stock/modified pipes, stock/modified filters; about an 8% power increaseStage 3: stock/mild modified engine, stock/modified pipes,...

Stage 1: stock engine/filters, stock/modified pipes; about a 5% power increaseStage 2: stock/mild modified engine, stock/modified pipes, stock/modified filters; about an 8% power increaseStage 3: stock/mild modified engine, stock/modified pipes,...

Stage 1: stock engine/filters, stock/modified pipes; about a 5% power increaseStage 2: stock/mild modified engine, stock/modified pipes, stock/modified filters; about an 8% power increaseStage 3: stock/mild modified engine, stock/modified pipes,...

Dynojet Jet Kit - Stage 1 - Yamaha 4190 Yamaha -- YZ 426 F -- (2000, 2002, 2001)