The Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology both internally and externally. In addition, they achieve a shorter overall length that is less susceptible to crash damage and complementary to their Factory Forward Engineering - moving the muffler closer to the motor to centralize mass. The Factory 4.1 RCT is constructed from only aerospace grade materials that meet FMF’s exacting specifications and is manufactured 100% at their Southern California factory.
- Made from the highest quality blend of aluminum
- Massive power gains throughout the RPM range
- Huge weight savings
- Can be used with FMF or stock O.E.M header
Note: For closed course competition use only. Not intended for street use.
Note: Image for reference only. Actual product may vary according to vehicle.
Note: This product may not be legal for sale or use in California or in other localities due to state and/or federal anti-tampering laws. Refer to chaparral-racing.com/terms before purchasing.
Specifications | |
---|---|
SKU | 327-044443 |
Brand | FMF Racing |

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
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Part Numbers
SKU | MPN | Availability | In-Store Pickup | |
---|---|---|---|---|
Aluminum/Carbon Fiber | 327-044443 | 044443 | 10+ In Stock. Ready to ship. | - |
Aluminum/Carbon Fiber | 327-045558 | 045558 | 3 In Stock. Ready to ship. | - |
Anodized Titanium | 327-045596 | 045596 | Unavailable. | - |
Titanium | 327-045595 | 045595 | Unavailable. | - |
Aluminum/Carbon Fiber | 327-045567 | 045567 | Unavailable. | - |
Aluminum/Stainless | 327-045472 | 045472 | Unavailable. | - |
Aluminum/Carbon Fiber | 327-044427 | 044427 | Unavailable. | - |
Aluminum/Carbon Fiber | 327-044406 | 044406 | Unavailable. | - |
Aluminum/Stainless | 327-044390 | 044390 | Unavailable. | - |
Aluminum/Carbon Fiber | 327-044383 | 044383 | Unavailable. | - |
Aluminum/Carbon Fiber | 327-043347 | 043347 | Unavailable. | - |
Aluminum/Stainless | 327-043327 | 043327 | Unavailable. | - |
Aluminum/Carbon Fiber | 327-043319 | 043319 | Unavailable. | - |
Aluminum/Carbon Fiber | 327-042330 | 042330 | Unavailable. | - |
Aluminum/Carbon Fiber | 327-042292 | 042292 | Unavailable. | - |
Aluminum/Carbon Fiber | 327-042291 | 042291 | Unavailable. | - |
Aluminum/Carbon Fiber | 327-042290 | 042290 | Unavailable. | - |
Titanium | 327-042284 | 042284 | Unavailable. | - |
Anodized Titanium | 327-041550 | 041550 | Unavailable. | - |
Aluminum/Stainless | 327-041517 | 041517 | Unavailable. | - |
Aluminum/Carbon Fiber | 327-041474 | 041474 | Unavailable. | - |
Aluminum/Carbon Fiber | 327-041473 | 041473 | Unavailable. | - |