CFMOTO 450SR/NK/SS Exhaust Upgrade: 51MM Slip-On Review

4.7 / 5
53.75 USD
Sales
4.7 / 5
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What People Say

T

The sound difference is night and day compared to the stock muffler; it finally sounds like a real sportbike.

Verified Buyer
I

Installation was a breeze on my 450SR, and the stainless steel finish looks premium on the bike.

Verified Buyer
F

For fifty bucks, you can't beat this quality. The removable DB killer is a great touch for when I need to keep it quiet in my neighborhood.

Verified Buyer

Problem & Solution

The stock exhaust on the CFMOTO 450 series is often criticized for being too quiet and restrictive, masking the true aggressive character of your bike. Many riders feel that the factory muffler lacks the deep, sporty growl that a performance machine deserves, leaving them feeling disconnected from the engine’s potential.

This 51MM stainless steel slip-on muffler is the perfect solution for riders looking to unlock a richer, throatier exhaust note without breaking the bank. By replacing the restrictive stock component, this kit optimizes exhaust flow, enhances the bike’s aesthetic with a sleek, modern finish, and provides that satisfying rumble that turns heads at every stoplight.

Who Is It For?

This product is designed specifically for CFMOTO 450SR, 450NK, and 450SS owners (2022-2026 models) who are passionate about personalizing their ride. It is ideal for the budget-conscious enthusiast who wants a high-quality aftermarket sound and look without the extreme costs associated with premium branded exhaust systems.

It is also perfect for riders who perform their own maintenance and are looking for a straightforward, bolt-on modification that can be installed in their home garage without specialized tools.

Key Features

  • 51MM Universal Inlet
    Compatibility with a wide range of aftermarket tips
  • Stainless Steel Construction
    High heat resistance and long-term corrosion protection
  • Includes DB Killer
    Ability to toggle between a track-ready roar and street-legal volume
  • Mid-Link Pipe Included
    Seamless fitment specifically engineered for the CFMOTO 450 platform
  • Lightweight Design
    Reduced overall bike weight for improved handling and agility
  • Slip-On Installation
    Quick, bolt-on upgrade that requires no permanent modifications

Pros & Cons

Pros

  • Significantly deeper and more aggressive exhaust note
  • Extremely affordable price point at just $53.75
  • Durable stainless steel finish resists rust and weathering
  • Includes removable DB killer for adjustable sound levels

Cons

  • May require a minor ECU tune for maximum performance gains
  • Installation can be tight; requires basic mechanical knowledge

FAQ

Will this fit both the 450SR and the 450NK?

Yes, this kit is specifically designed to fit the CFMOTO 450SR, 450NK, and 450SS models from 2022 to 2026.

Is it difficult to install?

It is a slip-on system, meaning it is designed for a straightforward DIY installation with basic hand tools.

Does the DB killer significantly change the sound?

Yes, the DB killer effectively muffles the sound to keep it street-friendly, while removing it unleashes a much louder, race-inspired tone.

Is the mid-link pipe included in the box?

Yes, the package includes the essential mid-link pipe required for a clean fit on the CFMOTO 450 series.

Final Verdict

For the price of $53.75, this 51MM slip-on exhaust is arguably the best value-for-money upgrade you can buy for your CFMOTO 450 series. It balances aggressive aesthetics, improved sound quality, and ease of installation into one affordable package. If you want to stop sounding like a stock commuter and start sounding like a sportbike racer, this is the upgrade you’ve been waiting for.