Hot-Rod Exhaust System for Kawasaki W650/W800

    Brand: MASS Moto
    €1.259,- Made to order, allow 4-6 weeks
    Stainless steel 2-into-2 exhaust system with side outlets and integrated baffles within the pipes for a "total" look. Hand-made in Italy, excellent quality.
    See applications and details below.
    2 variations
    Article number

    Product description

    - Kawasaki W650 (1999-2007)
    - Kawasaki W800 (2010-2016)
    - Kawasaki W800 std/Street/Cafe (2019+, Euro4 and Euro5 versions)

    Stainless steel 2-into-2 exhaust line with side outlets.

    The dB-killers are integrated within the pipes for a complete look. The pipes are double-layered, with a layer of soundproofing sandwiched between two concentric steel pipes. Diameter 60mm at their widest. The conical shape of the downpipes also allows a better "outdraft", hence a faster exit for the exhaust gases and a performance gain.

    For the newer W800 from 2019+, available as an option in "Euro4 certified" version, in this case the baffles are replaced with two mini-catalysts in the downpipes. In this version the system is supplied with Euro4 certificate.

    Does not exist with Euro5 certification.

    For W650 and the non-cat W800, certified "Euro 3" (with dB-killers in place), supplied with E3 certificate.

    Weight only 5 kg, less than half of the original exhausts.

    Noise level intermediate 3/10, one step louder than stock with a more "direct" sound. Removable baffles. Sound video here.

    The baffles/catalysts are easily removed if you want a bigger soundtrack, but in this case you lose the legal certification.

    The downpipes include the locations to re-fit the O2 sensors.

    No modification of the engine management required, the ECU will automatically adapt the map to the new parameters.


    Designed and crafted by MASS Moto in Italy. MASS is a small company that combines passion and high technology to produce products of very high quality and perfect finish. All MASS products are made of aviation-quality stainless steel and are type-approved for Europe.

    We recommend to have a professional perform the installation, except if you are experimented in this matter.
    Requires no modification of the bike, totally reversible assembly.

    12-months warranty.


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