Spark R&D has been working for a long time to offer a complete and super competitive product range, 3/4 systems or full systems, so as to ensure maximum performance to the owners of the Japanese supersport bike. They are available in different materials and with different types of silencers in order to meet the multiple aesthetic needs and the different noise limits. In fact, strict noise limits have been introduced on European circuits, during both free practice and race days. The maximum dB level allowed varies according to the championship and the bike’s engine. Spark has therefore developed different products allowing to obtain maximum performance as well as to respect such noise limits, without db killers.

In order to precisely respond to the different aesthetic and sound tastes, different silences are available: Force silencer or the brand new Force Evo to be within the 107 dB limit required by the French championship and the Endurance World championship; Konix Evo silencer for 113 dB; and Grid-O silencers over the dB limit.

The 3/4 system consists of a 2in1 manifold to eliminate the catalytic converter and silencer. The system has been studied and designed in order to obtain maximum performance while keeping the original manifold. 

The different ¾ systems are listed below:

3/4 KIT D.60: 2in1 titanium collector + KONIX EVO silencer - GKA8841T

3/4 KIT D.60: 2in1 titanium collector + GRID-O silencer - GKA8843T

3/4 KIT D.60: 2in1 titanium collector + FORCE EVO silencer - GKA8844T

The full system is the top-range product developed in cooperation with teams participating in major international championships. In addition to the research for collector’s best sizing to optimize performance, technologies and structural details of the product ensures top reliability. 

From the aesthetic point of view the connecting pipe wins you over with visible welds enhancing the racing nature of the product. Weldings, segments and cones are not simple aesthetic quibbles but they are necessary solutions: after repeated bench tests such specific cones - out of the production standards - have been chosen as they allow the best torque. Hence the maximum, sought after together with the Orelac team in the SBK world championship, is re-proposed in the catalogue, full titanium collectors. The system produced until 2021 has been replaced by the new manifold configuration which is improved both from the performance and technical point of view thanks to the introduction of CNC machined bushings on couplings.

Also in this case, different silencers have been combined, for different sound level levels:

FULL SYSTEM D.60: STAINLESS STEEL COLLECTOR + FORCE silencer - GKA8803T

FULL SYSTEM D.65: TITANIUM COLLECTOR + FORCE EVO silencer - GKA8849T

FULL SYSTEM D.65: TITANIUM COLLECTOR + KONIX EVO silencer - GKA8847T

FULL SYSTEM D.65: TITANIUM COLLECTOR + GRID-O silencer - GKA8848T