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LLY Injector Installation Kit
LLY Fuel Lines
LLY Injector Installation Kit

70% Over Injector and Installation Kit for LLY 6.6L Chevrolet GMC Duramax

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Are you ready to take your LLY 6.6L Chevrolet GMC Duramax to the next level? Look no further than our 70% Over Injector and Installation Kit. Designed with high-performance in mind, this kit includes everything you need to unleash the full power and potential of your engine.

Featuring 70% over standard fuel delivery, our fuel injectors deliver an extra boost of power that you need. And with the included return line kits, glow plugs, and oil filter, you can rest assured that your engine will perform at its best with every ride.

Installation is a breeze, thanks to our comprehensive installation kit. But we don't just provide you with the tools - our team of experts is always available to answer any questions and provide technical support.

Due to the performance application of this kit, these parts carry a fitment only warranty. 

This product contains an item which is sold exchange, meaning the used unit, or 'core' must be returned within 35 days of order shipment. We do not charge a core fee at the time of sale, however, we must have a credit card on file before shipping your order. Once the order is placed, you will be emailed an electronic core agreement, where you authorize us to bill for the core should it not be returned. This form must be completed prior to order fulfillment.

You can also pay for the core charge upfront and return your core no more than 60 days from order delivery to receive a full refund of your core deposit. The core charge on this product is $150.00 per injector. For more information on our core policy, click here.

Interchangeable Part Number Information: 

97303657 , 97780144 , 0 986 435 504 , 0986435504 , 0 445 120 027 , 0445120027    

( 6.6L 6.6 66 66L 66 L )