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The Haltech Elite 2500 LSx Terminated Harness Kit is a complete engine management solution for GM GEN IV LS-based engines, including LS2 and LS3 variants. Featuring full Drive-By-Wire capability and pre-terminated wiring, this kit significantly reduces installation time while maximizing functionality and performance tuning potential.
Designed for manual transmission applications, this system is ideal for racing builds and engine conversions seeking complete control over ignition, fuel, cam timing, boost, and more—all through the powerful Elite 2500 ECU and intuitive NSP software.
Note: For competition/off-road use only (NOT CARB LEGAL). LS2 ignition coils and harnesses are not included. Check alternator connector compatibility before purchase.
Turnkey Engine Control Kit: Includes Elite 2500 ECU, terminated engine harness with fuse block and firewall grommet, and USB programming cable.
Direct Fitment: Pre-wired for GM LSx engines with 7-pin coil harness connectors and common US-style Delco/Bosch alternator.
Advanced ECU Capabilities:
Drive-by-wire throttle support
Flex fuel control and dual bank closed-loop O2
Variable camshaft control (up to 4 cams)
Dual knock sensor support and high-speed data logging
Racing Functions:
Launch control, traction control, anti-lag, and boost by gear/speed/timer
Nitrous support with 6 stages and 3D corrections
Flat shift, trans brake, and optional torque management
Tuning Flexibility: Supports 4D tuning tables, per-cylinder adjustments, and multiple user-defined conditions for ultimate control
Engine Compatibility: GM GEN IV LSx (e.g., LS2, LS3)
Alternator Compatibility: Common US-style Delco/Bosch connector (see guide for variations)
Transmission Requirement: Manual transmission only
Haltech Elite 2500 ECU with DBW and race functionality
Terminated engine harness with fuse block and firewall grommet
USB programming cable
Note: LS2 ignition coils and coil harnesses not included. Alternator adapter (HT-040090 or HT-040091) may be required.
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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