We've got another awesome project in the works for the 8th-generation Honda Civic Si! Our recently released performance intake system received great feedback from customers, but it also identified an additional need for intake system components. We decided to develop a Civic Si induction hose made from silicone to replace the stock rubber unit.
Stock Civic Si Induction Hose
Before jumping into the design of our prototype hose, check out a few shots of the stock unit.
Stock Honda Civic parts
Stock Honda Civic parts
The stock hose directs airflow coming through the airbox/mass air flow (MAF) housing to the throttle body. This hose has quite a unique route around engine bay components. Two separate flex joints on this piece allow for the engine movement. These areas of the hose are typically prone to cracking and splitting from oil saturation and extended exposure to heat. This hose features two crankcase ventilation (CCV) connection points that will need to be replicated on our design to