
$319.99
Ships from TX, United States.
Ships from TX, United States.
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Want extra peace of mind? Even if a seller doesn't offer returns,
MX Locker gives you the option to make any item returnable with Return Assurance at checkout.
MX Locker is 100% committed to ensuring that every sale ends in satisfaction—for both buyer and seller. Your payment is held until the item is delivered and approved. If it's not as described, you'll receive a full refund.
Every transaction is backed by our secure payment system. We hold funds until you confirm the item arrived in the promised condition—so you can shop worry-free.
MX Locker is 100% committed to ensuring that every sale ends in satisfaction—for both buyer and seller. Your payment is held until the item is delivered and approved. If it's not as described, you'll receive a full refund.
Every transaction is backed by our secure payment system. We hold funds until you confirm the item arrived in the promised condition—so you can shop worry-free.
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Shipping Policy
Fast Shipping
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Return Policy
30-Day Returns
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100% Buyer Satisfaction
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The FMF Factory Fatty is a high-performance 2-stroke exhaust pipe designed to broaden and smooth out the power curve while boosting power gains throughout the entire power band. Inspired by the "works" or cone pipes once used by professional factory race teams, this pipe offers improved low-end, mid-range, and increased over-rev for better throttle control and tractable power. It is constructed from lightweight 20-gauge steel for the body and reinforced 19-gauge steel for the header portion to provide durability while minimizing weight. The pipe features hand-pounded seams to ensure smooth flow transitions for optimal performance. Please verify fitment for your specific application before purchasing.
Key Features
Why Choose FMF 78-1545F - Factory Fatty 2-Stroke Exhaust Pipe?
The FMF Factory Fatty delivers a professional-grade power band reminiscent of factory race pipes, providing improved throttle response and tractable power across the entire RPM range.
Specifications
| Brand | FMF |
| Part Number | 78-1545F |
| Condition | NEW |
| Notes/Other | Professional installation recommended. Designed for closed-course competition use. Some models may include O-rings; please verify your specific setup requirements. |
This part fits the following vehicles:
| Make | Year | Model |
|---|---|---|
| GasGas | 2023 | MC 125 |
| KTM | 2022 | 125 SX |
| KTM | 2022 | 150 SX |
| GasGas | 2022 | MC 125 |
| Husqvarna | 2022 | TC 125 |
| KTM | 2021 | 125 SX |
| KTM | 2021 | 150 SX |
| GasGas | 2021 | MC 125 |
| Husqvarna | 2021 | TC 125 |
| KTM | 2020 | 125 SX |
| KTM | 2020 | 150 SX |
| Husqvarna | 2020 | TC 125 |
| KTM | 2019 | 125 SX |
| KTM | 2019 | 150 SX |
| Husqvarna | 2019 | TC 125 |
Please verify fitment with your specific vehicle before purchasing.
Policies
Shipping Policy
Items ship within 1-2 business days.
Return Policy
Returns accepted within 30 days.
SLM Racing
© 2026 SLM Racing. All Rights Reserved.
Compatible with 3 Gas Gas vehicle(s)
Compatible with 4 Husqvarna vehicle(s)
Compatible with 16 KTM vehicle(s)Responds within 3 hours.
Ships within 3 business days.
Items match their descriptions.
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