Upgrade the power delivery of your two-stroke with the FMF Fatty Expansion Pipe, manufacturer part number 023059 and vendor part number 78-1487. Designed for an all-around power increase throughout the power range, this performance exhaust pipe helps improve acceleration, throttle response, and usable power across the engine’s operating range. The Fatty model is a versatile choice for riders who want balanced performance without focusing exclusively on low-end torque or high-rpm power.
Feature: The pipe is electro-nickel plated for a durable, non-chip finish that resists discoloration during normal use. The factory pipe exception has hand-pounded welds and no coating, following the appearance and construction style of works bikes. The Fatty design is intended for riders seeking broad, well-rounded performance for motocross, trail, and general off-road riding.
Feature: FMF offers multiple expansion pipe designs for different riding preferences. The Gnarly model emphasizes low-end torque and uses a heavy-duty 18-gauge steel body for demanding off-road conditions, while the Factory Rev model focuses power delivery in the middle and upper RPM range. This listing is for the Fatty configuration, which provides an all-around power increase throughout the powerband.
The FMF Fatty Expansion Pipe fits 2004, 2005, 2006, 2007, and 2008 Suzuki RM250 motorcycles. Confirm that your motorcycle model year and exhaust configuration match the listed fitment before installation. FMF part number 023059 and vendor part number 78-1487 provide reliable reference points when ordering replacement or performance exhaust components.
Features:
- All-around power increase throughout the power range
- Electro-nickel-plated finish resists chipping and discoloration
- Fatty expansion pipe design provides balanced power delivery
- FMF performance exhaust component for two-stroke applications
- Fits 2004-2008 Suzuki RM250 motorcycles
- Manufacturer part number: 023059
- Vendor part number: 78-1487
Fitment:
2004 Suzuki RM250
2005 Suzuki RM250
2006 Suzuki RM250
2007 Suzuki RM250
2008 Suzuki RM250