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This K&N cold air intake system fits 2011–2012 Chevrolet and GMC Silverado/Sierra 2500/3500 HD 6.0L models and pairs a mandrel‑bent aluminum intake tube with a washable, reusable high‑flow oiled cotton filter. The oversized cone filter reduces restriction, extends service intervals up to 100,000 miles under normal highway driving, and comes with a heat shield for cooler intake air. Some parts may have CARB restrictions; check vehicle compliance.
K&N 11-12 Chevy Silverado 2500/3500 HD / 11-12 GMC Sierra 2500/3500 HD High-Flow Perf Intake Kit
