Overview

The PRL Motorsports Cobra Cold Air Intake is the benchmark intake for the 10th Gen Civic Si. By placing the air filter low in the front fender cavity ahead of the engine bay, it draws true cold ambient air and isolates intake charge temps from engine bay heat soak.

Features a seamless rotational-molded HDPE cold-air duct and billet CNC MAF housing engineered to maintain factory fuel trims. 50-state emissions legal under CARB EO D-878-5.

Features

• True cold-air placement inside the front bumper/fender cavity
• Rotomolded high-density polyethylene (HDPE) cold air duct
• CNC-machined 6061 billet aluminum MAF housing
• 4.0" reusable oiled cone air filter
• 50-state legal — CARB EO D-878-5

What's Included

• (1) Rotomolded HDPE intake duct
• (1) Billet aluminum MAF housing (Standard Bore)
• (1) 4" reusable oiled cone filter
• (1) 4-ply silicone coupler
• Stainless mounting bracket and hardware

Fitment

• 2017–2021 Honda Civic Si 1.5T (Sedan & Coupe)
• Compatible with Honda Sensing package

Canadian models require USDM washer reservoir conversion (supplied separately).

Installation Notes

• No ECU calibration required (Standard Bore)
• CARB Executive Order: D-878-5 (50-state legal)
• Installation guide (PDF): Download