All CBM Motorsports™ harnesses are completely plug and play with switched power, constant power and ground connections required. Harnesses are professionally constructed from brand new GM Delphi connectors and TXL (Polyethylene Cross Linked) High Temperature Wire to GM Specifications.
This is not a modified OEM harness. Every clip, connector and pin is brand new. All blunt cut wires are clearly labeled for easy installation. We use genuine weather pack Delphi plugs for every connection (not knock off China plugs). This is a show quality harness and uses all expandable sleeving, not cheap plastic split loom. All wires are correct AWG and have shrink wrap at each end.
Every harness comes with a four foot lead to mount the computer under a seat, inside the passenger compartment, on a firewall, etc. The package comes with a water tight relay pack and fuse holder. All harness`s are 100% Quality Inspected prior to shipping. Note that harness`s are for non-emissions equipped vehicles and do not include air pump or EGR provisions.
Complete Engine Wiring Harness including:
- All engine sensor connectors.
- ALDL Connector.
- Fuel Pump Relay.
- Switched Power Ignition Relay.
- Tach Wiring.
- Complete Detailed Instructions.
MEFI pro™ Website

CBM Motorsports™ products are warranted to be free from defects in material and workmanship for a period of 90 days from the date of purchase. CBM Motorsports™ electronic components and products are warranted to be free from defects in material and workmanship for a period of 30 days from the date of purchase. If the any part does not meet the limited warranty criteria an RMA number will have to be initiated to set up an exchange or refund.
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™.