Fatty Exhaust Pipe 18-24 KTM Husqvarna GasGas 85 SX TC MC - FMF 025221
4.1 Trustpilot 99.9% positive on eBay
Delivery to United States 5–8 business days
Spread the cost with 
FMF Racing Fatty 025221 Gold Series pipe delivers broad, tractable power across the rev range. Engineered using premium carbon steel with a durable nickel-plated finish, the Fatty smoothes and amplifies power delivery from low-end to over-rev. FMF’s Tru-Flo stamping ensures precision fitment and optimal exhaust flow, with compatibility for both FMF and stock silencers. Features a broadened and smoothed power curve with improved throttle control and noticeable gains across the entire power band: increased low-end, midrange, and top-end. Constructed from carbon steel and finished with durable nickel plating for corrosion resistance. FMF Racing’s Tru-Flo stamping process guarantees accurate fit and maximum performance. Can be paired with either FMF or OEM silencers unless otherwise specified. O-rings included for proper sealing. This is FMF’s most popular 2-stroke expansion chamber. Item ID: 025221. Type: Pipes. Carb Warning: No. Weight: 3.0 lbs.
- SKU
- 07-M32.FMF.FAT
- Brand
- FMF Exhausts
- Availability
- In Stock (7)
Fitments (36)
| Make | Model | Year |
|---|---|---|
| GASGAS | MC 105 | 2021 |
| GASGAS | MC 105 | 2022 |
| GASGAS | MC 105 | 2023 |
| GASGAS | MC 105 | 2024 |
| GASGAS | MC 85 | 2021 |
| GASGAS | MC 85 | 2022 |
| GASGAS | MC 85 | 2023 |
| GASGAS | MC 85 | 2024 |
| HUSQVARNA | TC 105 | 2018 |
| HUSQVARNA | TC 105 | 2019 |
| HUSQVARNA | TC 105 | 2020 |
| HUSQVARNA | TC 105 | 2021 |
| HUSQVARNA | TC 105 | 2022 |
| HUSQVARNA | TC 105 | 2023 |
| HUSQVARNA | TC 105 | 2024 |
| HUSQVARNA | TC 85 | 2018 |
| HUSQVARNA | TC 85 | 2019 |
| HUSQVARNA | TC 85 | 2020 |
| HUSQVARNA | TC 85 | 2021 |
| HUSQVARNA | TC 85 | 2022 |
| HUSQVARNA | TC 85 | 2023 |
| HUSQVARNA | TC 85 | 2024 |
| KTM | 105SX | 2018 |
| KTM | 105SX | 2019 |
| KTM | 105SX | 2020 |
| KTM | 105SX | 2021 |
| KTM | 105SX | 2022 |
| KTM | 105SX | 2023 |
| KTM | 105SX | 2024 |
| KTM | 85 SX | 2018 |
| KTM | 85 SX | 2019 |
| KTM | 85 SX | 2020 |
| KTM | 85 SX | 2021 |
| KTM | 85 SX | 2022 |
| KTM | 85 SX | 2023 |
| KTM | 85 SX | 2024 |
- General Product Group
- Exhaust Systems & Parts
- General Product Type
- Header Pipe
- Variant Id
- 210940
FULL DESCRIPTION
FMF Fatty Exhaust Pipe - Premium 2-Stroke Performance
Unlock the full potential of your 2-stroke engine with the FMF Racing Fatty Gold Series pipe. Developed over 35 years of racing heritage, this expansion chamber is engineered to deliver a broad and tractable power band, enhancing your riding experience across the entire rev range. The Fatty pipe is renowned for smoothing and amplifying power delivery, making it a top choice for competitive riders and performance enthusiasts.
Key Features:
- Broadened Power Curve: Experience improved throttle control and noticeable gains from low-end torque to top-end power.
- Optimized Power Delivery: Smoothes and amplifies power output across the entire RPM range.
- Premium Construction: Built from high-quality carbon steel for durability and performance.
- Durable Nickel Plating: The nickel-plated finish provides excellent corrosion resistance, ensuring longevity.
- Precision Fitment: FMF’s Tru-Flo stamping technology guarantees accurate fit and optimal exhaust flow.
- Versatile Compatibility: Designed to work seamlessly with both FMF and stock (OEM) silencers.
- Included O-rings: Ensures proper sealing for efficient exhaust operation.
Specifications:
- Type: Pipes
- Weight: 3.0 lbs
QUESTIONS? JUST ASK
Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00 (UK time).
Check the fitment table on this page against your make, model and year. Not sure? Call or email us and we will check it for you before you order.
Yes. We ship from the UK. Orders ship within 3 working days, then delivery to the United States takes 5–8 business days. The delivery price is shown at checkout before you pay. Delivery details
Yes. You have 14 days from delivery to return it, unused and in its original packaging. Contact us first and we will send you the return instructions. Returns policy
By card, PayPal, Apple Pay or Google Pay, or spread the cost with Klarna. Payment is taken securely by Stripe, and the options for your order are shown at checkout.
Any customs duties or import taxes charged in the United States are paid by you when the parcel arrives. Any tax we collect ourselves is shown at checkout before you pay.
More answers in our FAQ.
Trade pricing available
Buying parts for your business? Apply for a 2BrosParts trade account.