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 drivability
Fully adjustable

More Information
Manufacturer SKU	4148
Manufacturer:	DynoJet
Department	PAM-PU
Show Stock	Yes
Riding Style	Street
California Restricted Product:	Yes

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Year	Make	Model
2002-2008	Honda	CRF450R
2002-2008	Yamaha	CRF450R

Jet Kit - Yamaha XVZ1300 4148