Upgrade your CRF450R with the HGS CF‑421‑CCG Slip-On Exhaust, engineered to deliver enhanced throttle response, refined sound, and reduced weight—from the factory-proven Dutch exhaust specialists.

This slip-on system is designed exclusively for Honda CRF450R from 2021 through 2025, including the elite Works Edition and RX variantsReddit+15Ghostbikes+15eBay+15cyclemufflermo.com+1motocrosscenter.com+1. Crafted from stainless steel with a carbon fiber end cap, it bolts directly onto the stock header without modificationsReddit.

Why Choose HGS Slip-On?

• Reduces overall exhaust weight to around 8 lbs 9 oz—lighter than OEMVital MXcyclemufflermo.com

• Produces a crisper and more defined sound (~114.8 dB max) compared to stock (~121 dB)Reddit+15Vital MX+15Reddit+15

• Offers stronger torque and throttle response across race rpm ranges

The HGS CF‑421‑CCG does not require ECU remapping—performance gains are achieved through freer exhaust flow and minimal added noise from the carbon-cap silencerMx Factory Parts Ltd+9Motor Racing Shop+9Vital MX+9mxserviceparts.com.au+4cyclemufflermo.com+4motocrosscenter.com+4.

🔧 Key Features & Benefits

• Fitment: Honda CRF450R (2021, 2022, 2023, 2024, 2025)

• Design: Stainless steel collector with high-flow carbon-end silencer

• Performance Gains: Noticeable mid-range torque increase and throttle response improvement

• Weight Savings: Approximately 1–1.5 lbs lighter than stock unit

• Sound Profile: Crisp and sporty tone, quieter than many aftermarket systems

• Installation: Plug-and-play bolt-on; no cutting or header replacement required

• Durability: Built for high-temperature endurance and racer-style performance

This system is a proven upgrade option on sand tracks and cross-country circuits worldwide—trusted where performance and reliability matter mosteBay+9motocrosscenter.com+9cyclemufflermo.com+9.

⚠️ Rider Insights & Notes

Reddit threads note that HGS systems offer sharper power at higher rpm and may feel less responsive at low rpm compared to some alternatives like FMF or YoshimuraReddit+15Reddit+15Vital MX+15.
For riders seeking firmly enhanced throttle response and race sound without needing a full exhaust or ECU remap, the slip-on is a practical and cost-effective option.