01-04 Chevy / GMC Duramax LB7 6.6L S&B Intake

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One piece air box design features an integrated box seal that keeps out unwanted engine heat. The cooler the air, the greater the density, resulting in better performance. Premium silicone seals won't tear or crack and can handle temperatures as high as 400%. Designed to fit better than the stock intake. You'll be breathing easy in 45 minutes

• AIRFLOW IMPROVEMENT

  44.63%

• 

  EFFICIENCY RATING

  99.25%