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Pro Circuit Stainless Steel Head Pipe Yamaha YZ450F 2003-2005 4Y03450H

Part Number: 18220023
PRO CIRCUIT
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SKU:
18220023
MPN:
4Y03450H
Condition:
New
Availability:
Ships Same Business Day
Weight:
1.75 LBS
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$253.95

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Description

The stock header on your YZ450F limits what your engine can actually deliver. The Pro Circuit 4Y03450H stainless steel head pipe unlocks measurable gains in throttle response and low-to-mid-range torque by optimizing exhaust scavenging, giving you the edge on technical terrain where power delivery matters most. Built from 304 stainless steel, this bolt-on upgrade resists corrosion and heat cycling far better than mild steel alternatives, meaning it'll perform consistently season after season.

This header integrates seamlessly with both OEM and Pro Circuit silencer systems, so you can tune your complete exhaust without fabrication work. Whether you're racing competitively or pushing hard on the trail, the improved responsiveness and durability make this one of the smartest performance investments you can make for your YZ450F.

  • 304 stainless steel construction
  • Bolt-on installation
  • Yamaha YZ450F 2003-2005 fitment
  • Enhances low-to-mid torque
  • Improves throttle response
  • OEM and Pro Circuit compatible
  • Superior corrosion resistance
  • MPN: 4Y03450H
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Specs

COLOR/FINISH:
STAINLESS STEEL
PRODUCT NAME:
HEADER
RIDING STYLE:
ADVENTURE TOURING / DUAL-SPORT
TYPE:
HEAD PIPE
RIDING STYLE:
OFF-ROAD
COLOR/FINISH:
BRUSHED
MATERIAL:
STAINLESS STEEL
UNITS:
EACH
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Fitment

Fitment for Pro Circuit Stainless Steel Head Pipe Yamaha YZ450F 2003-2005 4Y03450H

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