What vehicles does the PRL Civic Si Cobra Cold Air Intake fit?

The kit fits all 2017-2021 Honda Civic Si 1.5T (FC1) models with the 1.5L turbo L15B7 engine, including the Honda Sensing package.

Does the Civic Si Cobra Cold Air Intake Big Bore require a tune?

Yes. The Big Bore MAF housing requires MAF-specific ECU calibration, and Big Bore basemaps are available for Hondata and KTuner.

What is included in the Civic Si Cobra Cold Air Intake?

The kit includes a billet aluminum MAF housing, a PRL high flow oiled cone air filter, a 4-ply upper silicone intake hose, a 6-ply lower silicone intake hose, an HDPE rotomolded lower intake tube, four 304 stainless steel worm clamps, stainless steel mounting brackets, and stainless steel hardware.

Is the Civic Si Cobra Cold Air Intake compatible with the factory CVT cooler?

No. PRL states it is not compatible with the factory CVT cooler found on Spain and Turkey models.

Is the Civic Si Cobra Cold Air Intake sold in California?

No. PRL states the product is not for sale in the State of California.

What is the difference between the Big Bore and Standard Bore housings?

Both use the factory MAF sensor but differ in diameter and profile. The Civic Si Cobra Cold Air Intake Big Bore allows a 50% larger volume of air than Standard Bore and requires a tune, while Standard Bore is designed for factory-spec fuel trims without any tuning.

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BP PRICING DIFFERENCE

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Description

PRL Motorsports Cobra Civic Si Standard Bore Cold Air Intake System for FC1 Honda Civic 1.5T

The PRL Civic Si Cobra Cold Air Intake System pairs a PRL high flow oiled cone filter with a CNC machined billet aluminum MAF housing for the 2017-2021 Honda Civic Si 1.5T. The housing uses the factory MAF sensor and is designed for factory-spec fuel trims without any tuning. PRL reports up to 15 hp and 12 lb-ft over stock with no tune.

Civic Si Cobra Cold Air Intake Features

Civic Si Standard Bore Cold Air Intake with a CNC machined billet aluminum MAF housing
Designed for factory-spec fuel trims within -4% of factory STFT and LTFT, with no tuning required
PRL reports up to 15 hp and 12 lb-ft over stock with no tune
Uses the factory MAF sensor
HDPE rotomolded lower intake tube
4-ply upper silicone hose and 6-ply lower silicone hose in black
PRL high flow oiled cone air filter
Stainless steel mounting brackets, hardware and 304 stainless steel worm clamps included

What’s Included

Standard Bore Cobra billet aluminum MAF housing (Si)
PRL high flow oiled cone air filter
4-ply upper silicone intake hose (1)
6-ply lower silicone intake hose (1)
HDPE rotomolded lower intake tube
304 stainless steel worm clamps (4)
Stainless steel mounting brackets
Stainless steel hardware

Applications

Honda Civic Si: FC1 | 2017-2021 | 1.5L turbo I4 L15B7

Notes

No calibration required for the Civic Si Cobra Cold Air Intake
Fits the Honda Sensing package
A clutch line bracket is not included
Not compatible with the factory CVT cooler found on Spain and Turkey models
Canadian models require a USDM windshield washer reservoir conversion kit
CARB EO D-878-5 is listed by PRL for this product

Frequently Asked Questions

What vehicles does the PRL Civic Si Cobra Cold Air Intake fit? The kit fits all 2017-2021 Honda Civic Si 1.5T (FC1) models with the 1.5L turbo L15B7 engine, including the Honda Sensing package. A 2020 Civic Si 1.5T fits.
Does the Civic Si Standard Bore Cold Air Intake require a tune? No. No calibration is required for the Standard Bore MAF housing, which is designed for factory-spec fuel trims without any tuning.
What is included in the Civic Si Standard Bore Cold Air Intake? The kit includes a Standard Bore billet aluminum MAF housing, a PRL high flow oiled cone air filter, a 4-ply upper silicone intake hose, a 6-ply lower silicone intake hose, an HDPE rotomolded lower intake tube, four 304 stainless steel worm clamps, stainless steel mounting brackets, and stainless steel hardware.
Is a clutch line bracket included with the Civic Si Standard Bore Cold Air Intake? No. A clutch line bracket is not included in the kit.
Does the Civic Si Standard Bore Cold Air Intake fit non-Si Civics such as the Touring? No. Non-Si models such as the 2019 Civic Touring need the PRL Non-Si version of the Cobra cold air intake.
What is the difference between the Standard Bore and Big Bore housings? Both use the factory MAF sensor but differ in diameter and profile. Standard Bore is designed for factory-spec fuel trims without any tuning, while Big Bore allows a 50% larger volume of air and requires a tune. A race MAF requires a tune, and the Civic Si Standard Bore Cold Air Intake is the no-tune option.

About PRL Motorsports

PRL Motorsports started in 2007 as PRL Racing, a small group of enthusiasts outside Pittsburgh, Pennsylvania, united by a single goal: faster lap times. What began trackside quickly earned a reputation for engineering excellence, producing race cars capable of 9-second quarter-mile passes as early as 2007 and 6-second times by 2009. By 2011, the operation had grown into PRL Motorsports, expanding from trackside tuning into full-scale product development and fabrication across Honda, Nissan, Mitsubishi, and Subaru platforms. In 2018, PRL Motorsports made a deliberate shift to focus entirely on manufacturing, concentrating their resources on engineering and producing performance components rather than installation and tuning services. Today, PRL Motorsports operates from a 25,000 sq/ft facility in Export, Pennsylvania, staffed by over 25 professionals and equipped with CNC machining departments, automated cutting stations, dual-spindle lathes, 5-axis milling centers, and robotic loading systems running 24-hour production capacity. Their catalog covers intercooler systems, intake systems, turbocharger systems, exhaust components, and throttle body and intake manifold adapters, many of which carry CARB compliance and SEMA Garage certification. From a 9-second S13 to tuning the first 10th-generation Civic into the 10-second range in 2019, PRL Motorsports has built its reputation on one principle: never settle, always push for the best possible outcome.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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PRL Motorsports Big Bore Cobra Cold Air Intake System for FC1 Honda Civic Si [PRL-HC10-INT-CAI-D]

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PRL Motorsports Cobra Civic Si Standard Bore Cold Air Intake System for FC1 Honda Civic 1.5T

Civic Si Cobra Cold Air Intake Features

What’s Included

Applications

Notes

Frequently Asked Questions

About PRL Motorsports

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