If you're installing a Gen IV Chevy LS engine into a hot rod, street machine or any non-EFI vehicle and want to retain the LS engine's OEM electronic fuel injection system, the new Pro-Flo 4 LS ECU & Harness Kit #35712 is what you'll need to complete the installation and get your Gen IV LS up and running to its full potential. This kit is designed specifically for the Gen IV LS engine with a 58X reluctor identified by the gray camshaft sensor mounted in the timing cover. The compact ECU and harness integrate seamlessly with the existing LS injectors, coils, camshaft/crank sensors and other factory intake manifold connections to greatly simplify the installation, start-up and performance tuning processes. This kit provides the perfect solution for those "junkyard" LS engine swaps where the factory ECU and wiring harness may be missing or damaged. The Gen IV LS ECU & Harness Kit #35712 can be used for any level of LS performance, and what makes this kit so unique and easy to use is the Edelbrock E-Tuner application, which eliminates the need for laptop tuning or costly dyno sessions. The E-Tuner is a user-friendly app that uses Bluetooth connectivity to communicate with the ECU and comes pre-installed for you in the kit's included Android-based tablet. You can also download it free of charge in the Google Play Store to use with your Android-based smartphone. The key to the E-Tuner's simplicity is a Setup Wizard that guides you step by step through the initial programming for your particular engine. Once you provide the Setup Wizard with basic data (type of engine, cubic inches, firing order, cam profile), the E-Tuner then selects the most appropriate base calibration for your engine. As you drive the vehicle, the self-learning E-Tuner continually maximizes the fuel map according to the environment and your driving style so that your engine is always performing at its best.
Pro Flo 4 Ecu & Engine Harness Kit For Gen Iv 58X Ls Engines.
Edelbrock Max-Fire Universal High Performance's Spark Plug Wires.

SHIPPING POLICY

For US customers, we offer 3 shipping options:

• Free shipping for orders over $69. This shipping option takes 5-8 business days.
• Economy for small orders (less than 1lbs) $6.99
• This shipping option takes 5-8 business days. 
• Standard shipping (FedEx / UPS) for all orders $9.99 
• This shipping option takes 1-5 business days. 

We are currently unable to offer   overnight or 2-day guaranteed shipping .

This is because the warehouses of most of our suppliers only ship Ground.

Products ship from our Miami facility or drop ship direct from our Suppliers

Orders placed before 11am CST are typically will send the same day. 

Most orders placed after that time are will send the following business days. 

If you have specific shipping requests or needs please contact us at sales@bills-exhausts.com prior to purchasing and we will do our best to assist you.

If an item is back ordered from the manufacturer you will be notified by us. FYI – We don’t like it when this happens any more than you do.

We will try and help as best we can with back orders

A TRACKING NUMBER will be send to you via email or text after purchasing .

SHIPMENTS WITHIN THE U.S.

FREE STANDARD SHIPPING  on orders over $69 is available in all US lower 48 states, APO addresses, and Puerto Rico via USPS or UPS.  (*Exceptions apply for Alaska and Hawaii.)

Free standard shipping means we will select an option that gets you your parts as soon as possible while still being economically priced.

We reserve the right to deny free shipping for any reason.

About pre-orders:

When you order  PRE-ORDER it  means that you can purchase it before the official release date and then, you just wait for the shipping Usually pre-orders takes from 1-6 weeks depending the brand and the product. 

Contact us when ordering or we will contact you to go over rates and times.

INTERNATIONAL SHIPMENTS

WE SHIP WORLDWIDE Shipping rates outside the US are based upon destination and weight. 

Canada and Puerto Rico Fast shipping with DHL Prepaid Customs/Taxes (DDP)

•  Countries we don't collect  tax or duties required pay by you.

 (We cannot ship big size tires , oil ,batteries  and other heavy and big size items Internationally ONLY If you AGREE for LTL freight shipping, the final cost may differ from the amount shown at checkout due to additional fees.

We will contact you for confirmation before processing your order. )

If you have questions about these fees or duties contact us prior to ordering and we can assist you.

 -For international orders, customers who refuse the package will not receive a refund for the original shipping cost. Additionally, any return shipping fees incurred by us will be deducted from the customer's refund

 -Tires are not eligible for return.

 -Electronics are not eligible for return.

More for Return policy here

Delivery times for international shipments are typically 5 to 9 business days, but this can vary depending on your country’s customs procedures.

Orders delayed by customs are not something we can control or change.

ALL international orders(Includes CANADA and Puerto Rico) needed to be ship from our location in Miami Florida.

Most of International orders cannot drop ship from supplier's warehouses(Except on some specific Brands)

Parts typically arrive at our warehouse within 2-7 business days.

Once parts arrive, we will email you a tracking number.

The business days you see at checkout are how long it takes for your package to arrive after we ship it

• Track my order

PAYMENT METHODS

We accept  Visa, Mastercard, AMEX, ApplePay,GooglePay, and Discover credit cards  and Paypal , as well as debit cards with a Visa or Mastercard logo.

Contact us at sales@bills-exhausts.com if you have any questions.

 *Products shipped within the state of Indiana are subject to a 7% sales tax.