Fully terminated, labeled and wrapped LSX Harness meant for installing an LS1/LS2/LS3/LS7 into any chassis. Only 3 wires to hook up and a fuel pump lead to run**
Harness includes LSX Injector Harness [part no. 7015]
LSX Crate Harness is setup for:
  • Heat wrapped wire runs where near Headers and exhaust
  • Wideband O2 sensors
  • Knock Sensors
  • MAP Sensor
  • Coolant Temp Sensor
  • Air temp sensor
  • Stepper Idle Air Control
  • Fuel Pressure
  • Oil Pressure
  • TPS (Electronic Throttle / Drive by Wire)
  • Cam and Crank Sensor (LS1/LS2 standard, Specify if LS3/LS7)
  • Terminated Injector plug (Connects with stock Injector harness, New Injector harness available in either Bosch Style or EV6)
  • Terminated Coil harnesses (connects with stock coil harness, H.O. Coil harness with upgraded power leads sold separately)
  • CAN 1 Communication Lead
  • CAN 2 Communication Lead
  • 2 QTY – Chassis Ground lugs
  • Main Power Relay
  • Accessory plugs- 2 qty

** – This does not include any additional ancillary devices added to the harness (such as boost control, nitrous control, traction control, radiator pressure, exhaust back pressure sensor, wheel speed sensors, etc…)

SKU: 4275a Category:
Delivery and return
Delivery and return

Next day delivery in store

Buy before 6pm to receive your order next day.

Next day delivery

Orders before 6pm from Monday to Saturday (or before 1pm on Sunday) will be delivered Next working day (except Northern Ireland and Highlands). Orders placed after 6pm (after 1pm on Sunday) or for Northern Ireland and Highlands will be delivered in 2 working days.
29 USD

Drop Point

In 2-3 working days. Pick up your parcel in one of the many diferent collection points available and during a wide range of hours.
39 USD

Same day delivery in London:

Place your order before 13:00 to get it today!. If you order later on, you’ll receive it the next day and if you order on Sunday, you’ll receive it the next working day.
59 USD
Shipping Information
Shipping Information


Complimentary ground shipping within 1 to 7 business days In-store collection available within 1 to 7 business days Next-day and Express delivery options also available Purchases are delivered in an orange box tied with a Bolduc ribbon, with the exception of certain items See the delivery FAQs for details on shipping methods, costs and delivery times
Composition and care
Composition and care

Characteristics of wood :

  • Hard, compact , fiberous and porous
  • Good wood gives a rich, warm and beautiful surface.

Wood is used for the construction of:

  • Floor, Furniture, Walls
  • Incidental furnishing (lampshades, picture frames)
  • Kitchen & restaurant ware


WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles and Racing Use Only Vehicles. It is the responsibility of the installer and/or user of this product to ensure compliance with all applicable local and federal laws and regulations. Please check with your local vehicle authority before purchasing, using or installing any Professional EFI Systems Inc. product.


In many states, it is unlawful to tamper with your vehicle’s emissions equipment. Professional EFI Systems Inc. products are designed and sold for sanctioned off-road/competition non-emissions controlled vehicles. Only and may never be used on a public road or highway. Using Professional EFI Systems Inc. products for street/road use on public roads or highways is prohibited by law unless a specific regulatory exemption exists. (more information can be found on www.semasan.com/emissions for state by state details in the USA)