JLT Air Filter Pre Filter Fits 5x9 Inch 6x9 Inch Filters Black Fuel Delivery~Injection Pumps & Controllers The integrated mounting points have

The integrated mounting points have been strengthened for added longevity

Pressure Tested and Rated To Withstand 120+ PSI

The XD390 Valve Spring Kit is designed to help eliminate valve float due to elevated cylinder pressures and higher boost levels

the bimetallic valve commonly fails in the closed position

Maximum Performance Our cold air intake for the 2004-2005 Chevy / GMC Duramax LLY 6

JLT Air Filter Pre Filter Fits 5x9 Inch 6x9 Inch Filters Black Fuel Delivery~Injection Pumps & Controllers The integrated mounting points haveThis prefilter specifically Fits our 5 x 9 Inch, 6 x 9 Inch Air Filters. JLT Performance pre filters are a great way to add style and protection to your JLT cold air Intake system. Custom made for us by Outerwears. Outerwears Pre filters are Designed to enhance the efficiency of any performance or exposed Air Filter. The Pre filter is constructed with a proprietary polyester mesh with uniform micron openings, treated with an hydrophobic water