High-performance heavy-duty two-stroke expansion chamber engineered to deliver robust, tractor-like bottom-end and midrange power for KTM's legendary big-bore 380 off-road and motocross applications. Constructed from tough 18-gauge carbon steel to withstand severe rock strikes, heavy trail abuse, and extreme thermal cycling while smoothing out and maximizing torque delivery.
Specs & Details
- Manufacturer PartNumber: 78-1524
- Alternative Part Number: FMF 025007 / 1820-0085
- 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 |
| KTM | 380 SX / EXC / MXC | Two-Stroke Motocross / Off-Road | 1998–2002 |
TSO Garage Note
The ultimate armor upgrade for taming and harnessing the arm-pulling torque of the mighty KTM 380. This heavy 18-gauge chamber thickens up the bottom-end and lower midrange so you can short-shift and lug through nasty terrain with total control, while easily shrugging off the heavy hits that would crush a stock pipe.
