How long is shipping for FMF Racing?

Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.

How do I install the FMF Racing Powercore 4 Muffler w/SS Header — Fits Honda XR50 CRF50F?

Cat-back exhausts are bolt-on with basic hand tools — most installs take 1-2 hours. No welding required.

How long is shipping for FMF Racing?

Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.

How do I install the FMF Racing Powercore 4 Muffler w/SS Header — Fits Honda XR50 CRF50F?

Cat-back exhausts are bolt-on with basic hand tools — most installs take 1-2 hours. No welding required.

How long is shipping for FMF Racing?

Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.

How do I install the FMF Racing Powercore 4 Muffler w/SS Header — Fits Honda XR50 CRF50F?

Cat-back exhausts are bolt-on with basic hand tools — most installs take 1-2 hours. No welding required.

How long is shipping for FMF Racing?

Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.

How do I install the FMF Racing Powercore 4 Muffler w/SS Header — Fits Honda XR50 CRF50F?

Cat-back exhausts are bolt-on with basic hand tools — most installs take 1-2 hours. No welding required.

How long is shipping for FMF Racing?

Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.

How do I install the FMF Racing Powercore 4 Muffler w/SS Header — Fits Honda XR50 CRF50F?

Cat-back exhausts are bolt-on with basic hand tools — most installs take 1-2 hours. No welding required.

FMF Racing

FMF Racing Powercore 4 Muffler w/SS Header — Fits Honda XR50 CRF50F

Name: FMF Racing Powercore 4 Muffler w/SS Header — Fits Honda XR50 CRF50F
Brand: FMF Racing
SKU: FMF040072
Price: 279.99 USD
Availability: InStock

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FMF Racing

FMF Racing Powercore 4 Muffler w/SS Header — Fits Honda XR50 CRF50F

SKU: FMF040072

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About FMF Racing FMF Racing engineers high-quality automotive parts and ...Read More

Price:

$279.99

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Car Wheel Size Chart

Wheel Diameter (inches)	Tire Width (mm)	Aspect Ratio	Rim Width (inches)
14	185	65	5.5
15	195	60	6.0
16	205	55	6.5
17	215	50	7.0
18	225	45	7.5
19	235	40	8.0
20	245	35	8.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

225 = Tire width in mm
45 = Aspect ratio (height as % of width)
R17 = Rim diameter in inches

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Guaranteed Low Price

GGCRACING Discount

Product Details

Product Description

Part Numbers

Sizing & Fit

About FMF Racing

FMF Racing engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full FMF Racing lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

High-Performance Exhaust for Honda Mini-Bikes

Give your Honda XR50 or CRF50F the power it deserves with the FMF Racing Powercore 4 Muffler and Stainless Steel Header. This exhaust system is specifically designed to maximize the potential of your 50cc machine, providing a crisp, race-inspired sound and improved acceleration.

Why Choose FMF Powercore 4?

Stainless Steel Header: Corrosion-resistant and built for long-term durability.
Increased Power: Engineered to improve mid-to-top end power for better performance on the track or trail.
Lightweight Design: Reduces overall bike weight compared to the heavy stock exhaust.
Precision Fitment: Designed specifically for Honda XR50 (2000-2003) and CRF50F (2004-2022) models.

The Powercore 4 system is the go-to choice for enthusiasts looking to upgrade their mini-bike performance. Its robust construction ensures it can handle the abuse of aggressive riding, while the improved flow characteristics help your engine breathe better. Installation is straightforward, allowing you to get back on the dirt faster. Elevate your riding experience with this premium exhaust upgrade. For all your high-performance auto and moto parts, trust GGCRACING.

Vehicle Fitment

Years	Make	Model	Trim
2004-2009	Honda	CRF50F	Base
2011-2021	Honda	CRF50F	Base
2000-2003	Honda	XR50R	Base

Often bought with

Other popular FMF Racing products customers consider together:

Product Details

Product Description

Part Numbers

Sizing & Fit

About FMF Racing

Watch in action

High-Performance Exhaust for Honda Mini-Bikes

Why Choose FMF Powercore 4?

Stainless Steel Header: Corrosion-resistant and built for long-term durability.
Increased Power: Engineered to improve mid-to-top end power for better performance on the track or trail.
Lightweight Design: Reduces overall bike weight compared to the heavy stock exhaust.
Precision Fitment: Designed specifically for Honda XR50 (2000-2003) and CRF50F (2004-2022) models.

Vehicle Fitment

Years	Make	Model	Trim
2004-2009	Honda	CRF50F	Base
2011-2021	Honda	CRF50F	Base
2000-2003	Honda	XR50R	Base

Often bought with

Other popular FMF Racing products customers consider together:

Product Details

Product Description

About FMF Racing

Watch in action

High-Performance Exhaust for Honda Mini-Bikes

Why Choose FMF Powercore 4?

Stainless Steel Header: Corrosion-resistant and built for long-term durability.
Increased Power: Engineered to improve mid-to-top end power for better performance on the track or trail.
Lightweight Design: Reduces overall bike weight compared to the heavy stock exhaust.
Precision Fitment: Designed specifically for Honda XR50 (2000-2003) and CRF50F (2004-2022) models.

Vehicle Fitment

Years	Make	Model	Trim
2004-2009	Honda	CRF50F	Base
2011-2021	Honda	CRF50F	Base
2000-2003	Honda	XR50R	Base

Often bought with

Other popular FMF Racing products customers consider together:

Wheel Diameter (inches)	Tire Width (mm)	Aspect Ratio	Rim Width (inches)
14	185	65	5.5
15	195	60	6.0
16	205	55	6.5
17	215	50	7.0
18	225	45	7.5
19	235	40	8.0
20	245	35	8.5

Wheel Diameter (inches)	Tire Width (mm)	Aspect Ratio	Rim Width (inches)
14	185	65	5.5
15	195	60	6.0
16	205	55	6.5
17	215	50	7.0
18	225	45	7.5
19	235	40	8.0
20	245	35	8.5

Wheel Diameter (inches)	Tire Width (mm)	Aspect Ratio	Rim Width (inches)
14	185	65	5.5
15	195	60	6.0
16	205	55	6.5
17	215	50	7.0
18	225	45	7.5
19	235	40	8.0
20	245	35	8.5

Wheel Diameter (inches)	Tire Width (mm)	Aspect Ratio	Rim Width (inches)
14	185	65	5.5
15	195	60	6.0
16	205	55	6.5
17	215	50	7.0
18	225	45	7.5
19	235	40	8.0
20	245	35	8.5

FMF Racing Powercore 4 Muffler w/SS Header — Fits Honda XR50 CRF50F

FMF Racing Powercore 4 Muffler w/SS Header — Fits Honda XR50 CRF50F

Car Wheel Size Chart

How to Read Tire Size

Product Details

About FMF Racing

Watch in action

High-Performance Exhaust for Honda Mini-Bikes

Why Choose FMF Powercore 4?

Vehicle Fitment

Often bought with

Product Details

About FMF Racing

Watch in action

High-Performance Exhaust for Honda Mini-Bikes

Why Choose FMF Powercore 4?

Vehicle Fitment

Often bought with

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Wheel Diameter (inches)	Tire Width (mm)	Aspect Ratio	Rim Width (inches)
14	185	65	5.5
15	195	60	6.0
16	205	55	6.5
17	215	50	7.0
18	225	45	7.5
19	235	40	8.0
20	245	35	8.5

Wheel Diameter (inches)	Tire Width (mm)	Aspect Ratio	Rim Width (inches)
14	185	65	5.5
15	195	60	6.0
16	205	55	6.5
17	215	50	7.0
18	225	45	7.5
19	235	40	8.0
20	245	35	8.5