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The Haltech Elite 2500 Terminated Harness Kit is designed for GM GEN III LS1 and LS6 engines, offering a fully programmable, drive-by-wire-ready solution for high-performance builds and EFI conversions. With support for GEN IV DBW throttle bodies, this system delivers race-level control, advanced tuning, and seamless integration using Haltech’s Elite 2500 ECU and terminated engine harness.
Built for manual transmission vehicles, this kit is ideal for users requiring a fast, clean installation with maximum flexibility for power management and tuning precision.
Note: For sanctioned off-road and competition use only (NOT CARB LEGAL). Ignition coils and harnesses not included.
Direct Fitment for GM GEN III LS1/LS6 Engines:
Supports retrofit of GEN IV LS2/LS3 DBW throttle bodies
Pre-wired for OEM 7-pin coil harness connectors
Compatible with common Delco/Bosch GM alternator plug
Manual transmission applications only
Elite 2500 ECU Functionality:
Drive-by-wire throttle support
Closed-loop dual bank O2, flex fuel tuning
Dual knock control and per-cylinder corrections
Variable camshaft control and staged injection
Race-Ready Features:
Anti-lag, rolling launch, flat shift, trans brake, traction and launch control
4D closed-loop boost control with learning and multiple logic axes
Optional advanced torque management for drag racing
Data Logging & Expansion:
Onboard and laptop-based logging
Dual CAN bus support for dashes and expansion devices
WBC1/2 CAN O2 wideband controller ready (controller not included)
Engine Compatibility: GM GEN III LS1 and LS6
Throttle Compatibility: Retrofit-ready for GEN IV LS2/LS3 DBW throttle bodies
Transmission Requirement: Manual only
Haltech Elite 2500 ECU with DBW and race functionality
Terminated engine harness with integrated fuse block and firewall grommet
USB programming cable
Note:
Alternator adapter may be required (HT-040090 or HT-040091)
Ignition coils and harnesses not included — recommend 8 × HT-020102 and/or HT-045657
We are open Monday-Friday from 8am-6pm EST
Yes, customers located in and around the the Piedmont area are welcome to pick up their items from our retail location during normal business hours. Our address is:
Elite Race Fab
1514 Holbrook St Suite D-F
Greensboro, NC 27403
Elite Race Fab offers free ground shipping & handling to our retail customers within the lower 48 contiguous United States on most orders totaling $159.99 and higher, when the item being purchased is not a Freight/LTL item! Orders under $159.99 will be subject to a nominal $13.99 Flat shipping charge. Some exceptions and/or exclusions apply, in those scenarios you will be advised of any additional charges in the item details/description stating shipping exclussions/freight shipping required etc.
In regards to expedited and international shipping each order will need to be quoted on a case by case basis. You can obtain a quote two ways:
- From your shopping cart select "Request a Quote" prior to placing your order. We will review your proposed order and promptly respond with shipping estimates.
- Complete your order ahead of time indicating either expedited or international shipping during the checkout process. We will promptly determine shipping rates for your order and email you for approval and additional payment.
-Give us a call and we can ensure your item is shipped right then, to ensure you have it in time for your deadline.
We have been committed to offering all of our customers the lowest pricing throughout our website day in and day out. We value your business so much that we go a step further than our competitors. We use a third party software that proactively monitors all our competitor's websites/pricing so that we can make adjustments accordingly if needed to have the lowest prices. Thats right, no need to spend hours searching for the lowest prices, as ours will be the lowest.
As far as price matching, we dont want to write a check we cant cash, but we certainly want to earn your business. With that said, we will go above and beyond to match our competitor's pricing when it is needed. Simply email us, click the live contact button, or give us a call and be sure to have a link to our competitor's site and please factor in any shipping and handling their website will be charging. We will then ensure you get the lowest price, and either match or beat their pricing.
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