The FuelTech LS550 V8 complete plug and play harness is the best fit for a standalone LS swap utilizing the FuelTech FT550 or FT550LITE ECU and GM LS engine. It comes pre-terminated to suit an LS engine with all relays and fuses for a simple 3 wire battery hook up and ignition power. Ready for both 58x and 24x triggers with provision for direct connection to LS3 style ignition coils, GM style flex fuel sensor and dual wideband Nano connection. The LS550 harness is set up for both cable and drive-by-wire based throttle, with the connector for a GM style accelerator pedal on the cabin side of the harness. Each connector has its own label and the connectors and harness insulation is heat, moisture and oil resistant.
LS550 V8 LS Complete Harness is a harness designed to install a FuelTech FT550 on a Chevrolet LS engine when replacing the stock ECU and harness completely, perfect for LS swap anything!
The harness has all the components needed to make a plug and play installation on a LS engine. It has all the relays and fuses needed for the system on a standard setup, a firewall grommet to hold and seal the harness and every connector has its own label.
Completely wired for 8 sequential EV1 injectors directly (does not need injector sub-harness) compatible with high impedance (saturated) injectors and completed wired for use of 2 of the FuelTech Peak and Hold Driver when using low impedance (peak and hold) injectors.
Compatible with OEM LS coils already wired in fully sequential (does not require coil sub harness).
Compatible with either OEM GM pedal and electronic throttle body from the LS2, LS3, LS7, LSA, LS9 and similar, as well compatible with cable throttle body when converted from electronic to mechanical throttle.
It has most of the engine sensors pre-wired: Electronic Pedal, Electronic Throttle body, TPS, 24x or 58x crank trigger, front and rear cam sync (1 and 4 tooth compatible), flex fuel sensor, fuel pressure, oil pressure, coolant and intake air temperature and more through extra inputs available for custom wiring.
Flex Fuel Ready with connector for the Continental Flex Fuel Sensor
This harness is setup for two FuelTech WB-o2 Nano o2 conditioners and two Bosch LSU 4.2 o2 sensors.
There is an INPUTS connector to custom wire up to 6 additional input channels for the engine or chassis datalogging (i.e. driveshaft RPM, transbrake button, suspension travel sensors, input shaft RPM, staging button and much more)
There is an EXTRA OUTPUTS connector to custom wire up to 8 additional outputs like wastegate boost control solenoids, transbrake solenoid, dump and lockup valves, gear shift, nitrous stages and more
Come with three 40A relays and fuses: Main Relay powers the ECU, WB-O2 Nano and all the sensors. The second relay powers the Peak and Hold drivers and the injectors and the third relay powers the ignition coils.
Weight for LS550 Complete harness: 8 lbs 3oz
Contents of Packaging
1 LS550 V8 Complete Harness
2 Peak & Hold Jumper Harnesses
1 LS550 8-Way connector kit
1 LS550 10-Way connector kit
1 LS550 12-way connector kit
1 Operation and installation guide
Billet Pro Shop is proud to ship worldwide, and ships using major postal services such as Purolator, DHL, UPS, USPS and more.
Orders to Canada generally arrive within 1-3 business days.
Orders to the USA generally arrive within 2-3 business days.
Orders throughout the rest of the world ship next business day, and depend greatly on destination for time to arrive, but generally arrive within 7-10 business days.
Shipping within USA is free over $249 - some exclusions on larger products may apply.
Our policy lasts 30 days. If 30 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange.
Any product ordered may be cancelled prior to processing payment. However, if the order has already been processed and shipped, a 20% restocking fee will apply to the total purchase. No products may be returned for credit after 30 days from receipt of the products by the customer. There are no credit returns on installed items.
To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.
* Gift cards
* Downloadable software products
There are certain situations where only partial refunds are granted:
* Any item not in its original condition, is damaged or missing parts for reasons not due to our error.
* Any item that is returned more than 30 days after delivery
Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.
If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.
Orders that have not been shipped can be cancelled by written or verbal request. Order cancellations that are requested before the order ships are subject to a 3% restocking fee. We are charged a non-refundable processing fee for every order, which will therefore not be refunded to the customer.
Late or missing refunds
If you haven’t received a refund yet, first check your bank account again.
Then contact your credit card company, it may take some time before your refund is officially posted.
Next contact your bank. There is often some processing time before a refund is posted.
If you’ve done all of this and you still have not received your refund yet, please contact us at firstname.lastname@example.org
Only regular priced items may be refunded, unfortunately sale items cannot be refunded.
We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email at email@example.com
You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.
Depending on where you live, the time it may take for your exchanged product to reach you, may vary.
If you are shipping an item over $75, you should consider using a trackable shipping service or purchasing shipping insurance. We don’t guarantee that we will receive your returned item.