Customer Ratings
Customer Reviews
⭐️ Lionparts has awesome customer service and can’t thank them enough for their help in getting my order/setup correct! - Tom M.
⭐️ Best customer service I have experienced in a very long time. Product is high quality and fits perfect - Christy
⭐️ LionParts has been very consistent, and helpful finding the necessary parts for my needs! - Curtis
⭐️ Had an awesome experience with Lionsparts! I bought my KFI snow plow from them through Trevor who was very knowledgeable and helpful! - Eric
FMF Factory 4.1 Slip-On Exhaust Pipe Gray 25+ Kawasaki KX250X KX 250 - 042411
$611.94
Questions? Call or text us at:1-888-927-3076
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Customer Reviews
⭐️ Lionparts has awesome customer service and can’t thank them enough for their help in getting my order/setup correct! - Tom M.
⭐️ Best customer service I have experienced in a very long time. Product is high quality and fits perfect - Christy
⭐️ LionParts has been very consistent, and helpful finding the necessary parts for my needs! - Curtis
⭐️ Had an awesome experience with Lionsparts! I bought my KFI snow plow from them through Trevor who was very knowledgeable and helpful! - Eric
- Factory 4.1 RCT incorporates the FMF Resonance Chamber Technology both internally and externally
- Achieves a shorter overall length that is less susceptible to crash damage and complementary to Factory Forward Engineering, moving the muffler closer to the motor to centralize mass
- Constructed from only aerospace grade materials that meet exacting specifications and is manufactured 100% at the southern California factory
- For closed course competition use only.
| End Cap Material | Carbon Fiber |
| Muffler Color/Finish | Anodized Gray |
| Riding Style | Off-Road |
| End Cap Color/Finish | Black |
| Pipe Material | Stainless Steel |
| Type | Slip-On |
| Product Name | Muffler |
| Model | Factory 4.1 RCT |
| Muffler Material | Aluminum |
| Units | Each |
| 2025 | Kawasaki | KX250 | - | - |
