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Upper engine

Camshaft Hotcams exhaust - Level 1

Hotcams exhaust - Level 1 Camshaft Ref : HO00025A / 1006459

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Hotcams exhaust - Level 1 CamshaftRef : HO00025A / 1006459

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Description
Compatible motorbikes
Questions and answers

DescriptionHotcams exhaust - Level 1 Camshaft

Product details :

HOT CAMS Stage 1 exhaust camshaft designed for Yamaha WRF/YZF450 (manufacturer part number: 4044-1E). Developed and tested on dynamometers and by racing teams, this cam profile offers a lightweight tuning solution for motocross and quad machines.

Stage 1: increases torque and power without any additional modifications needed — ideal for a small plug-and-play upgrade.
Stage 2: reserved for heavier modifications, requires other changes (high compression pistons, carburetor, etc.).
Stage 3: developed for Supermotard or displacement increase (to be used with original springs).

The kit includes two complete sets of shim kits to allow for precise valve timing adjustment. Installation is recommended by a qualified mechanic with the appropriate tools — the operation requires precision and timing control to fully benefit from the cam profile.

Compatibility (examples):

YAMAHA WR 450 F (DJ03) — 2015
YAMAHA WR 450 F (CJ13) — 2011
YAMAHA YFZ 450 2WD — 2009

Brand: HOT CAMS — Category: Camshaft. Product intended for riders looking to refine their engine's torque curve and responsiveness without heavy modifications.

Technical information :

Reference

HO00025A / 1006459

Use

All-terrain

Compatible motorbikes

YAMAHA7 compatible models

YFZ 450 2WD - 2004/2009WR 450 F (DJ03) - 2012/2015WR 450 F (CJ13) - 2008/2011WR 450 F (CJ04) - 2003/2004WR 450 F (CJ07) - 2005/2005WR 450 F (CJ09) - 2006/2006WR 450 F (CJ12) - 2007/2007