Keep your 6.6L LLY Duramax diesel breathing strong with high-performance air filters and accessories from Norcal Diesel Performance. The LLY Duramax is known for its solid power and reliability, but like any diesel engine, it depends on clean, unrestricted airflow to deliver top performance and efficiency. Upgrading or maintaining your air filter system is one of the simplest ways to protect your turbo, improve throttle response, and extend engine life. We carry quality options from trusted brands like S&B Filters and Mishimoto, including performance air filters, S&B filter wraps, replacement filters, and cleaning and oil kits. Whether you’re pushing your LLY to the limit on the job site or just want to keep it running like new, our premium air filters and accessories will help your Duramax breathe easier and perform better for years to come.
