Fits: 2001 thru 2004 Chevy Silverado/GMC Sierra 2500HD/3500HD LB7 Duramax Diesel

The Industrial Injection 50% over R4 Injectors start out as a genuine stock remanufactured injector from the factory then have been extrude honed and balanced to a perfect matching set injectors that flow 30LPM. The R4 50% over injectors should be ran with a Silver Phatshaft turbos, Single S400 or compound turbo setups to run more efficiently and to help reduce EGTs. Also recommend a CP3 upgrade like the 120% over Double Dragon Fire Pump or Dual CP3 Kit We typically see a 1-3MPG increase in fuel economy. This is a 100% OEM Reman Injector directly from the factory themselves simply sold and modified by us here at Industrial Injection. When replacing the injectors in your LB7 Duramax we highly recommend replacing the injector fuel lines to avoid new injector contamination. The most common failure of new injector installations is contamination and the problem that we see most on these comes from the fuel lines.  Replacement injector line retainer clip and injector line retainer bolt available separately

Features:

• Performance Injector
• Better Fuel Economy
• 50% Over / 30LPM
• 1 year Unlimited Mileage Warranty

Notes:

• Injectors come with a new copper crush washer and o-rings for installation. Injectors are an OEM Genuine part that is a direct replacement injector. 
• Each injector has a $150 core charge and is fully refundable if they are shipped back within 45 days.
• All Industrial Injection / OEM products are covered by a one year/unlimited mile warranty.
• Injectors sold individually.
• Fuel Lines MUST be replaced or sent in for cleaning to retain warranty. Injectors sold individually
• THE MANUFACTURE, SALE, OFFER FOR SALE, OR INSTALLATION OF THIS PRODUCT IS NOT LEGAL IN CALIFORNIA.