PRL Motorsport Charge Pipe Upgrade Kit – 2017-2019 Civic Type ROur upgraded charge pipe kit utilizes smooth flowing, 26% larger inner diameter cold side for increased airflow and factory diameter hot side outlet to aid in turbocharger spool. 4 ply silicone couplers are used throughout our design for a couple of reasons: Heat soak reduction: Silicone hose offers extremely low thermal heat transfer properties, especially in comparison to steel or aluminum. Strength and rigidity: The rubber hoses used from the