Fits most models including 6MT, CVT, RHD, International models, etc.
Installation:
PDF - 2016-2021 Honda Civic 1.5T Short Ram Intake System Installation Instructions (Standard Bore)
PDF - 2016-2021 Honda Civic 1.5T Short Ram Intake System Installation Instructions (Big Bore)
Important Notes:
- No ECU calibration required for Standard Bore MAF housing
- Big Bore MAF housing requires MAF-specific ECU calibration
- Big Bore MAF base map calibrations available for both HONDATA and KTUNER
- Compatible with PHEARABLE calibrations when selecting the Two Step Performance "TSP" & "RACE MAF" options
Technical Notes:
If we could recommend one intake system for the 1.5L Turbo Civic platform, it would be the Cobra Cold Air Intake System. However, for customers who do not wish to run a CAI, our Short Ram Intake System is also an option. Our CNC machined billet aluminum MAF housings are designed to provide factory-spec fuel trims (within -4% of factory STFT and LTFT) for optimal drivability and performance. This SRI utilizes a 4-inch air filter and offers a choice of two different MAF housings: Standard Bore and Big Bore. Both housings utilize the factory MAF sensor but feature two different diameters and profiles. As mentioned above, the Standard Bore housing is designed to provide factory-spec fuel trims without any tuning. The Big Bore housing requires tuning as it allows 50% more airflow compared to the Standard Bore housing. This increased airflow reduces pumping losses and creates an unrestricted air path to supply the MAF housing with ambient temperature air.
Customers can use the MAF Housing Conversion Kit
Customers can use the Cold Air Conversion Kit
Performance Gains:
- 15 HP and 12 ft/lbs torque increase over stock when using the Standard Bore MAF housing without tuning
- 20 HP and 15 ft/lbs torque increase over stock when using the Big Bore MAF housing with Big Bore MAF base map calibration via Hondata or KTuner
- Greater gains seen at higher power levels with custom tuning
This is a graph of Long Term Fuel Trim using a Cold Air Intake (Standard Bore MAF) and factory ECU mapping.
This is another Long Term Fuel Trim graph, but using a Cold Air Intake (Standard Bore MAF) and a +6psi Hondata off-the-shelf map.
Notice how consistent and similar all the LTFT graphs are. Each graph is within -4 LTFT.
Above is a graph of Short Term Fuel Trim using a stock intake with airbox and factory ECU mapping (stock vehicle).
<img src="https://hosting.photobucket.com/images/kk200/prlspencer/Civic_x_S.trim_PRL_intake_and_stock_tune_zps1mnt3fck.jpg?width=1920&height=1080&fit=bounds" border="0" alt="Civic_x_S.trim_PRL_intake_and_stock_tune_zps1mnt3fck">
This is a Short Term Fuel Trim graph using a Cold Air Intake (Standard Bore MAF) and factory ECU mapping.
This is another graph of Short Term Fuel Trim using a Cold Air Intake (Standard Bore MAF) and a +6psi Hondata off-the-shelf map.
All STFT graphs show identical curves and consistency.
Before Ordering
〇 Regarding Import Consumption Tax
At Shafutoya shopping site, we pay the import consumption tax incurred at the time of import on your behalf, so there will be no additional charges beyond the total amount paid at checkout.
〇Compatibility Check
Our entire product database is based on North American vehicles (USDM). Please confirm compatibility with Japanese vehicles (JDM) before ordering. (If you are unsure if the listed product is compatible with your vehicle, please feel free to contact us. Our support team will investigate for you.)
If you order without confirming compatibility, we cannot accept returns due to incompatibility.
Please note that even if products are sorted by selecting the year, manufacturer, and model in the tabs on our homepage, this does not necessarily mean they will fit Japanese models without modification.
All products have been translated into Japanese using translation software. As there may be confusing expressions, please contact us before ordering if you have any questions.
○ Regarding Shipping
Shipping costs are paid at the time of checkout. Shipping estimates are calculated automatically once you enter your shipping address on the checkout page. For large items such as body parts, the automatically calculated shipping cost may occasionally differ significantly from the actual cost. In such cases, we will contact you individually by email.
All products are generally shipped internationally from our US warehouse. Unlike domestic shipping in Japan, international shipping takes about 7 to 14 days, so please order with enough time to spare. If you are in a hurry, please contact us to confirm the delivery date in advance. All products are shipped via air freight. They are not shipped by sea freight.
○ Regarding Japanese Vehicle Inspection (Shaken) Compatibility
The products we handle are generally designed and manufactured outside of Japan. Please note that they are not compliant with "Japanese vehicle inspection standards," and we cannot provide documents such as strength calculation reports for Japanese inspection purposes. Therefore, all parts are sold for use on "circuits, private property, and off-road," and installation and use are at your own risk.
○ Regarding Warranty
Please check the contents immediately upon arrival. Since all products are shipped internationally from outside Japan, there may be shipping damage to the packaging or products. Please note that we will only provide returns, refunds, or replacements for products with shipping damage, defective products, or items different from what you ordered if you contact us within 7 days of receipt. Please also understand that for products sold through us, warranty support will be provided "only through us." We do not provide support through other companies or distributors located in Japan.