Confirm this item fits
Add your vehicle details to make sure this item fits.
FMF Factory 4.1 RCT Full System Stainless/Aluminum Select 2018-22 KTM/Husqvarna & 2021-23 GasGas 450 Models (045638)
MPN: 045638
Shipping & DeliveryShips from United States.
Ships from United States.
Return PolicyWant 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.
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.
Shop With ConfidenceMX 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.
Overview
Description
FMF Factory 4.1 RCT full exhaust system for select KTM, Husqvarna and GasGas 450 four-stroke motorcycles.
- Stainless steel exhaust pipe
- Raw aluminum muffler
- Carbon fiber end cap
- Fits listed KTM 450, Husqvarna FC 450 and FX 450, and GasGas MC 450F and EX 450F applications
MPN: 045638
Specs:
| Category: | Exhaust, Mufflers & Tips |
| Class: | Mufflers, Pipes, & Systems |
| Division: | Exhaust |
| End Cap Material: | Carbon Fiber |
| Exhaust Type: | Full System |
| Model: | FACTORY 4.1 |
| Muffler Color/Finish: | Raw |
| Muffler Material: | Aluminum |
| Pipe Material: | Stainless Steel |
| Product Name: | Exhaust System |
| Product Type: | Exhaust |
| Riding Style: | Off-Road |
| Segment: | Offroad |
| Sub Class: | Exhaust Systems |
| Subcategory: | Muffler |
| Type: | Full System |
| Units: | Each |
Meet The Seller
Responds within 3 hours.
Ships within 3 business days.
Items match their descriptions.
Reviews
Need help? We're riders just like you.
By clicking subscribe, I agree to receive exclusive offers & promotions, news & reviews, and personalized tips for buying and selling on MX Locker.
MX Locker © 2026 Accessibility