These adapters are for stock LS style fuel rails. They adapt the factory 5/16" return fitting to -6AN. They are proudly made here in the USA from a solid piece of 6061-T6 Aircraft grade aluminum. This size usually fits the return side of an older two line system.
It will fit most GM applications with the smaller 5/16" hard line. If you have an older LS1 or a truck, your application requires an inlet and return.
For stock LS style fuel rails.
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The part must be returned to CBM with an RMA number assigned to it, and if it is in acceptable condition, CBM will issue credit directly to the customer. In addition, CBM Motorsports™ limited warranty specifically does not apply to products which have been modified or altered in any way, subjected to adverse conditions such as misuse, neglect, accident, improper installation or adjustment, dirt or other contaminants, water, corrosion or faulty repair, or used in racing activities or competitive applications other than those recommended by CBM Motorsports™ . This warranty does not warrant and disclaims all liability for products used in racing activities and/or applications, other than those specifically recommended by CBM Motorsports™.