Ans: Yes, installing a cold air intake can increase the engine noise or alter the sound characteristics of your vehicle. This change in engine noise is often considered a desirable side effect by automotive enthusiasts but might be a deal breaker for some. The design of many CAIs uses larger-diameter tubing and less restrictive air filters, which can create a more direct path for air to enter the engine. This enhanced yet turbulent airflow can generate additional noise as the engine draws in more air, creating a noticeable sound.