PLM Cold Air Intake with Heat Shield - Subaru WRX 2015-2021 Mitsubishi-Evolution-X-2015 They do recommend using 2

They do recommend using 2 sets of oem gaskets however

Ball-In-Socket Quik Latch Mounting System

Ceramic Pads

The adapter plate and spacer are CNC machined from 6061-T6 aluminum

PLM Cold Air Intake with Heat Shield - Subaru WRX 2015-2021 Mitsubishi-Evolution-X-2015 They do recommend using 2PLM Cold Air Intake with Heat Shield Applications: 2015+ SUBARU WRX Strong light weight cold air intake with heat shield Fits only US Market WRX due to different variations in body panels, beams and mounting points for outside markets. Requires MAF harness extension (Not included) Instructions not included Features Kit Includes: Powered coated aluminum heat shield Air filter Intake tube Silicone coupler Clamps High flow filter Heat shield Will give