Tsujiou Kosho (HST) produces original brand HST scarf.
In addition, we produce and sell silencers such as construction machinery and other soundproofing devices using the ability of the accumulated with automobile silencers.
Front exhaust pipes are often connected with the exhaust manifold and flange fittings, and vehicles with a deal exhaust manifold can be used as a Y-pipe to gather exhaust gases to balance exhaust and exhaust noise.
In addition, some products include hollow double tubes or insulation to accelerate the catalyst activation of the catalyst using flexible tubes on a part of the exhaust pipe to reduce the vibration of the exhaust system.