Akrapovic Evolution Titanium Exhaust – Honda CRF450R / CRF450RX (2021–2024)

Akrapovic Evolution Line Exhaust System – Titanium – Honda CRF450R / CRF450RX (2021–2024)

Part Number: 1820-1991 / S-H4MET16-FDHLTA

📝 Description

Get championship-level performance with the Akrapovic Evolution Line Exhaust System for the Honda CRF450R and CRF450RX. Built entirely from premium titanium, this full race system offers a substantial weight reduction while enhancing power delivery and throttle response. Designed to meet FIM noise standards, it includes a spark arrestor and is ideal for riders pushing the limits on the track or trail.

⚙️ Features

• Constructed entirely of lightweight titanium

• Durable welded bracket and conical titanium end cap

• Weight-saving design: over 2.2 lbs lighter than stock

• Includes spark arrestor

• Meets FIM noise limits

• Closed-course competition only – not legal for street use

🚦 Fitment

Compatible Honda Models:

• 2021–2024 CRF450R

• 2021–2024 CRF450RX

📐 Specifications

• Product Name: Exhaust System

• Type: Race Exhaust System

• Model: Evolution Line

• Design: 1-Into-1 System

• Material: Titanium

• End Cap Style: Conical

• Weight: 6.4 lbs (System), 10.8 lbs (Shipping)

• Weight Reduction: 2.2 lbs

• Dimensions: 34.5" (L) × 12" (W) × 11" (H)

• Units: Each

• Riding Style: Off-Road

📦 Part Notes

• Includes spark arrestor

• Designed for racing use only – not intended for street-legal vehicles