DOMA Silencer for KTM EXC 250, EXC 300 2019-2023

The DOMA 200688 exhaust silencer is designed for KTM EXC 250, EXC 300 from 2019 to 2023. On a two-stroke, the silencer cuts the noise while letting the exhaust gases through. Its rock wool packing compacts and burns away over the hours: the noise goes up and the engine loses efficiency.

Key features

• Steel inner tube and aluminium outer sleeve.
• Fits a Doma or stock expansion chamber.
• Handmade in Calais, France.

Specifications

• Brand: DOMA
• Manufacturer part number: 200688
• Engine: 2-stroke

When to replace it?

• Noise getting louder, metallic sound.
• Packing coming out, or black oil seeping from the end.
• Outer sleeve dented or cracked.

Competition use only, not road-legal. Plan to repack it roughly every 15 to 20 hours.

Fitting tips

1. Fit the silencer to the pipe with a gasket or connector in good condition.
2. Tighten the mounts without putting any strain on the silencer, then check them after the first ride.
3. To repack: drill out the end cap rivets, fill with loose packing and rivet it back on.

Why DOMA?

A French workshop based in Calais since 1992, Doma Racing designs and handbuilds two-stroke expansion chambers and silencers. A 125 world title in 2000 with Grant Langston and original equipment at KTM: a brand run by two-stroke enthusiasts.

Spare parts and items to plan

• Exhaust gasket : ATHENA · CENTAURO

Frequently asked questions

Will it fit my stock pipe?
Yes: it fits the stock expansion chamber as well as a Doma pipe.

Compatibility

Check the exact model and year of your bike in the list below before ordering.

Fits:
KTM EXC 250 2023
KTM EXC 250 2022
KTM EXC 250 2021
KTM EXC 250 2020
KTM EXC 250 2019
KTM EXC 300 2023
KTM EXC 300 2022
KTM EXC 300 2021
KTM EXC 300 2020
KTM EXC 300 2019