DEP Yamaha YZ250 99-17 Nickel Expansion Chamber

DEP 2 stroke pipes are produced from high quality CR1 grade, mild steel material. Ranging from 0.9-1.2mm, depending on the model and purpose. The 2 stroke stampings are produced through our own deep drawer process, using CNC cylinder mounts, in-house laser cut mounting brackets and fabricated with high quality TIG and MIG welding. All models are available in the bare metal factory finish and nickel finish. Our 2 stroke pipes have been designed to improve performance over the OE pipe with in-house DYNO and track testing. 

• Nickel chrome-plated finish
• Power increase from bottom, mid and top end - smooth delivery
• Designed for Motocross race use

2 Stroke Pipes Fitting Instructions
Fit pipe loosely to mounting points - only after fitting silencer should fixings be tightened. This product is designed only for the machine(s) stated on the label. Some pipes are produced with flat areas to provide frame, engine and water hose clearance. Other flats can be added to ensure adequate clearances. In the event of fitting difficulties, notify supplying dealer. The dealer or manufacturer can take no responsibility after the pipe has been run on the machine.

Jetting Instruction
It is advised to run the bike for five minutes under normal riding conditions and check the spark plug. The spark plug tip colour should be a biscuit brown, if it is white or black/oily you may need to make some jetting changes. Contact your local dealer for advice.

Advised jetting changes for this model:

• Use stock jetting