Performance air filters for Silverado, Sierra

The PRO 5R, ProDryS and ProGuard7 OE air filters from Advanced FLOW engineering (aFe) Power are available for the 2011-13 Chevrolet HD and GMC Sierra HD V8-6.6L (td) Duramax LML (P/N 30-10209).

Constructed with 100% polyurethane on all four sides, this high-flow, oiled OE replacement performance filter will outflow the stock paper filter by up to 68% for improved horsepower and torque, notes aFe.

The PRO 5R air filter uses five layers of progressively finer mesh cotton gauze media to provide maximum airflow for best performance results. The ProDryS uses three layer synthetic media which requires no oiling and dries quicker because it retains less moisture. The ProGuard7 uses five layers cotton gauze plus two layers synthetic material and requires oil for maximum protection.

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