FMF RACING 40678 Rct Spark Arrestor 4.1

( Brand: Fmf Racing ), ( Manufacturer Part Number: 40678 ), ( Product Type: Exhaust Parts ), ( California Prop 65 Warning: Cancer And Reproductive Harm. ), ( Fitment Type: Direct Replacement ), ( Compatible Make S : Ktm ), ( Compatible Model S : 1190, 125, 1290, 150, 200, 250, 300, 350, 390, 450, 50, 500, 65 ), ( Fitnote: 1190 Adventure, 125 Exc, 1290 Super Duke R Special Edition ), ( Product Subtype: Exhaust Baffles Inserts ), ( Type: Spark Arrestors ), ( Manufacturer Warranty: Unspecified Length )

Review FMF RACING Factory 4.1 Rct Spark Arrestor Insert

The FMF Racing 40678 4.1 RCT Spark Arrestor is a high-performance aftermarket part designed specifically for off-road motorcycles and ATVs. This spark arrestor is engineered to meet the stringent requirements of the Environmental Protection Agency (EPA) and the California Air Resources Board (CARB), making it an excellent choice for riders who prioritize emissions compliance while still seeking top-tier power and durability.

Constructed from a robust, lightweight aluminum alloy, the FMF Racing 40678 4.1 RCT Spark Arrestor boasts a sleek, compact design that is both aesthetically pleasing and functional. Its four-element design ensures optimal engine efficiency, while its 4.1-inch length and 2.4-inch diameter cater to a broad range of motorcycle and ATV applications.

The FMF Racing 40678 4.1 RCT Spark Arrestor features a reusable, high-temperature ceramic filter that is both effective at capturing exhaust gases and easy to clean. The filter's unique design allows for simple cleaning with water, making maintenance a breeze. Additionally, the spark arrestor's durable, high-temperature gaskets ensure a secure fit and prevent exhaust leaks.

This FMF Racing spark arrestor is designed to be a direct replacement for the stock part on various motorcycle and ATV models. Its easy-to-install design requires no modifications or additional hardware, ensuring a straightforward installation process. The FMF Racing 40678 4.1 RCT Spark Arrestor is an excellent choice for riders looking to enhance their off-road vehicle's performance while maintaining emissions compliance and ensuring a cleaner riding experience.

The FMF Racing 40678 4.1 RCT Spark Arrestor is a performance aftermarket spark arrestor designed for use with two-stroke off-road motorcycles. This component is essential for reducing exhaust emissions and ensuring compliance with environmental regulations. In this analysis, we will discuss the potential advantages and disadvantages of purchasing this spark arrestor.

1. Enhanced Performance: The FMF Racing 40678 4.1 RCT Spark Arrestor is designed to allow for maximum exhaust flow, enabling improved engine performance and increased power output.

2. Durability: The spark arrestor is manufactured using high-quality materials and is built to withstand the harsh conditions of off-road riding.

3. Compatibility: This spark arrestor is compatible with various two-stroke motorcycles, making it a versatile option for a wide range of users.

4. Easy Installation: The FMF Racing 40678 4.1 RCT Spark Arrestor comes with simple and straightforward installation instructions, allowing users to easily replace their stock spark arrestor.

1. Cost: The FMF Racing 40678 4.1 RCT Spark Arrestor is more expensive than some stock or aftermarket alternatives, which may deter budget-conscious consumers.

2. Loud Exhaust: The increased exhaust flow that contributes to the improved performance of this spark arrestor can also result in a louder exhaust note.

3. May Not Fit Perfectly: While this spark arrestor is compatible with numerous two-stroke motorcycles, it may not fit perfectly on every model, requiring some minor modifications or adjustments.

The FMF Racing 40678 4.1 RCT Spark Arrestor offers several advantages, including enhanced performance, durability, compatibility, and easy installation. However, it also comes with some drawbacks, such as the higher cost, louder exhaust, and potential need for minor modifications. Ultimately, the decision to purchase this spark arrestor depends on the user's priorities, budget, and riding preferences.

If you are looking for improved performance, durability, and compatibility for your two-stroke off-road motorcycle, the FMF Racing 40678 4.1 RCT Spark Arrestor is an excellent choice. Keep in mind that it comes with a higher price tag and a louder exhaust note compared to some alternatives. If these factors are not a concern for you, this spark arrestor is a solid investment for enhancing the overall riding experience.

part # 40678 prices

• $38.79-$42.55

specifications mufflermooch:

• brand: Fmf Racing
• manufacturer part number: 40678
• product type: Exhaust Parts
• california prop 65 warning: Cancer And Reproductive Harm.
• fitment type: Direct Replacement
• compatible make s : Ktm
• compatible model s : 1190, 125, 1290, 150, 200, 250, 300, 350, 390, 450, 50, 500, 65
• fitnote: 1190 Adventure, 125 Exc, 1290 Super Duke R Special Edition
• product subtype: Exhaust Baffles Inserts
• type: Spark Arrestors
• manufacturer warranty: Unspecified Length

general mufflermooch:

• condition: New
• Car Truck Parts Accessories > Exhaust Emission Systems > Mufflers Resonators

returns mufflermooch:

• time: 30 Days
• policy: Returns Accepted
• paid by: Seller

offer mufflermooch:

• quantity: 5
• sold: 0
• availability: In Stock
• started: October 27, 2025
• options: Ship-to-home

payments mufflermooch:

• credit card: Visa
• other
• wallet: Paypal

shipping mufflermooch:

• type: Fixed
• class: Standard
• carrier: FedEx
• transit: 3-7 Days
• cost: $10.00
• service: FedEx Ground / FedEx Home Delivery

seller mufflermooch:

• rating: 100.0%
• # reviews: 6337

Fmf Racing 40678 Is Similar To:

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