Silent Pipe is an innovation from PT Wahana Duta Jaya Rucika with unique material characteristics so that it can withstand hot exhaust water and reduce noise (low noise). Rucika Silent Pipe is developed from a special material, Astolan®. Astolan® is a special formula from a patented Mineral Reinforced material with Polypropylene. Pipes and pipe connections (fittings) are designed with a Rubber Ring Joint (RAJ) connection system so that it makes the connection process easier. Rucika Silent Pipe has a complete size so as to provide flexibility in the design of an integrated exhaust system. Rucika Silent Pipe offers an optimal solution with a long service life compared to cast iron.