High-performance heavy-duty two-stroke expansion chamber engineered to deliver robust, tractor-like bottom-end and midrange power for late-model Kawasaki KX250 motocross and off-road applications. Constructed from tough 18-gauge carbon steel to withstand severe rock strikes, heavy trail abuse, and extreme thermal cycling while significantly improving low-end torque and throttle response.
Specs & Details
- Manufacturer Part Number: 78-1280
- Alternative Part Number: FMF 022091 / 1820-0442
- Component Type: 2-Stroke Expansion Chamber / Exhaust Pipe
- Material & Construction: Heavy-gauge 18-gauge carbon steel with a nickel-plated finish
Two-Stroke Vehicle Fitment
| Make | Model | Engine Type | Year Range |
| Kawasaki | KX 250 | Two-Stroke Motocross / Off-Road | 2005–2007 |
TSO Garage Note
The ultimate armor upgrade for adapting the final generation of Kawasaki's legendary 250 two-stroke into an off-road or woods machine. This heavy 18-gauge chamber broadens the low-end pull so you can lug through tight, technical terrain with confidence, while easily shrugging off the brutal log and rock strikes that would crush a standard race pipe.
