PRL 2017-2021 Honda Civic Si 1.5T Short Ram Air Intake System

2017-2021 Honda Civic Si Short Ram Air Intake by PRL Motorsports

If we could recommend an intake system for the 1.5L Turbo Civic Platform it would our Cobra Cold Air Intake System. However, for customers that do not wish to run a CAI, our Short Ram Intake System is also an option.

Our CNC machined billet aluminum MAF Housing was designed to provide *factory-spec fuel trims (-4% of factory STFT & LTFT) for optimal drivability and performance. This SRI utilizes a 4" air filter and is available with two different MAF housing choices; a Street housing and a Race housing. Both housings utilizes the factory MAF sensor, but feature two different diameters and profiles.

As mentioned above, the Street housing is designed to provide factory-spec fuel trims WITHOUT any tuning whatsoever. The Race housing allows a 50% larger volume of air in comparison to the Street housing, which is why a tune IS required. This larger volume of airflow reduces pumping loss and creates an unrestricted air path to feed the MAF housing with ambient temperature air.

Features

• CNC machined billet aluminum MAF Housing
• Utilizes a 4" performance air filter
• Available with two MAF housing choices; a Street housing and a Race housing
• Street housing is designed to provide factory-spec fuel trims (-4% of factory STFT & LTFT) WITHOUT any tuning whatsoever
• Race housing allows a 50% larger volume of air in comparison to the Street housing and requires a tune. The increased airflow reduces pumping loss and creates an unrestricted air path to feed the MAF housing with ambient temperature air

PLEASE NOTE

• No tune required for Street MAF Housing
• Race MAF-Specific tune required for Race MAF Housing
• Hondata & KTuner both offer Race MAF basemap calibrations
• Two Step Performance "TSP" tune also compatible by selecting Race MAF option
• Short ram intakes are extremely sensitive to heat-soak with this chassis. Performance gains will lessen as the engine and intake begins to heat-soak.

Applications

• 2017 - 2021 Honda Civic Si

Performance Gains

• +15 horsepower and +12 ft/lb torque gains (Street MAF housing WITHOUT TUNE)
• +20 horsepower and +15 ft/lb torque gains (Race MAF housing WITH Tune)
• Larger gains to be seen at higher power levels with custom tuning

What's In The Box?

• 1 - PRL Short Ram Air Intake