END OF LINE Fatty Exhaust Pipe 01-08 KTM SX 50 JR - FMF 025091
The FMF Racing Fatty Gold Series pipe delivers proven two-stroke performance with a smoother and broader power curve for outstanding throttle control. This pipe expands and smoothens overall power delivery across the full rev range, enhancing low-end, mid-range, and over-rev performance for more controllable, tractable power. Constructed from robust carbon steel with a long-lasting nickel plated finish, it utilizes FMF’s Tru-Flo stamping for exact fit and peak output. This is FMF’s most popular two-stroke expansion chamber design. Compatible with FMF and stock silencers unless otherwise specified. Includes O-rings for reliable sealing. Item ID: 025091. Type: Pipes. Carb Warning: No.
- SKU
- 07-M05.FMF.FAT
- Brand
- FMF Exhausts
- Availability
- In Stock (1)
FULL DESCRIPTION
FMF Racing Fatty Gold Series Exhaust Pipe
Elevate your two-stroke performance with the FMF Racing Fatty Gold Series pipe, a legendary choice in motocross for decades. Engineered to deliver a smoother, broader power curve, this exhaust pipe provides enhanced throttle control and improved overall output. Its construction from high-quality carbon steel and a durable nickel-plated finish ensures longevity and resilience on and off the track. FMF's precision Tru-Flo stamping process guarantees a perfect fit and optimal airflow for peak performance.
Key Features:
- Expands and smoothens power delivery across the entire rev range.
- Boosts low-end, mid-range, and over-rev performance.
- Provides more controllable and tractable power for reliable throttle response.
- Constructed from robust carbon steel with a long-lasting nickel-plated finish.
- Features FMF’s Tru-Flo stamping for exact fit and optimal output.
- Compatible with FMF and stock silencers unless otherwise specified.
- Includes O-rings for a secure and reliable seal.
- Represents FMF’s most popular two-stroke expansion chamber design.
Specifications:
- Item ID: 025091
- Type: Exhaust Pipes


