PRL Motorsports Short Ram Air Intake System – 2017-2019 Honda Civic Si

$408.05

Important Notes:

  • NO CALIBRATION REQUIRED FOR STREET MAF HOUSING
  • RACE MAF-SPECIFIC CALIBRATION IS REQUIRED FOR RACE MAF HOUSING
  • RACE MAF BASEMAP CALIBRATIONS AVAILABLE IN BOTH HONDATA & KTUNER
  • TWO-STEP PERFORMANCE “TSP” & PHEARABLE CALIBRATIONS COMPATIBLE BY SELECTING “RACE MAF” OPTION

Technical Notes:

If PRL could recommend an intake system for the 1.5L Turbo Civic Platform it would be their COBRA COLD AIR INTAKE SYSTEM. However, for customers that do not wish to run a CAI, PRL’s Short Ram Intake System is also an option. Their 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.

Customers can switch between MAF housings without having to buy another intake system by purchasing their MAF HOUSING CONVERSION KIT

Customers can convert to a Cold Air Intake with their COLD AIR CONVERSION KIT

Performance Gains:

  • 15 horsepower and 12 ft/lb torque gains in comparison to stock with Street MAF housing WITHOUT TUNE
  • 20 horsepower and 15 ft/lb torque gains in comparison to stock with Race MAF housing WITH Race MAF basemap calibration on Hondata and/or KTuner
  • Larger gains to be seen at higher power levels with custom tuning

Please note that short ram intakes are extremely sensitive to heat-soak with this chassis (which is why we recommend our CAI). Performance gains will lessen as the engine and intake begins to heat-soak.

Civic_x_L.trim_stock_intake_and_stock_tune_zpskkzb36fg
Above is a graph of the long term fuel trims with the stock intake w/ air box and factory ECU mapping, or in other words a bone-stock car.

Civic_x_L.trim_PRL_intake_and_stock_tune_zpsfqmhgzzt
Here is a graph of the long term fuel trims again with, but with our cold air intake (Street MAF) and factory ECU mapping.

Civic_x_L.trim_PRL_intake_and_Hondata_6psi_tune_zpsvk4gipc4
This is another long term fuel trim graph, but with our cold air intake (Street MAF) and +6psi Hondata off-the-shelf map.

Notice how consistent and similar all of the LTFT graphs are. Each graph is within -4 LTFT.

Civic_x_S.trim_stock_intake_and_stock_tune_zpsswmv0ane
Above is a graph of the short term fuel trims with stock intake w/ air box and factory ECU mapping (stock car).

Civic_x_S.trim_PRL_intake_and_stock_tune_zps1mnt3fck
Here is a short term fuel trim graph with our cold air intake (Street MAF) and factory ECU mapping.

Civic_x_S.trim_PRL_intake_and_Hondata_6psi_tune_zpscqlf4ni0
This is another graph of the short term fuel trims with our cold air intake (Street MAF) and +6psi Hondata off-the-shelf map.

All of the STFT graphs display identical curves and consistency.

Additional information

Weight3 kg
Dimensions50 × 20 × 20 cm
Intake Option

PRL Race MAF Housing, PRL Street MAF Housing

Reviews

There are no reviews yet.

Be the first to review “PRL Motorsports Short Ram Air Intake System – 2017-2019 Honda Civic Si”

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Applications

Models suitable for this product

MakeModelYearSubmodel
MakeModelYearSubmodel
HondaCivic2017 - 2019Si Coupe - 1.5L Turbo
HondaCivic2017 - 2019Si Sedan - 1.5L Turbo

Got something to discuss?