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Description
HALTECH Elite 2500 + Premium Universal Wire-in Harness Kit Length: 5.0m (16')Outputs: Up to 8 injector and 8 ignition. Suits: Recommended for 4, 6, 8 cylinder, Drive By Wire (DBW) or 2, 3, 4 rotor engines, EFI conversions, engines with multiple variable camshafts. Includes: Elite 2500 ECU with DBW and Race Functions. Premium Universal Wire In Harness. Firewall grommet, moulded 6 power circuit fuse box and lid. 4 relays, 7 fuses and pins for the 2 spare power circuits. USB programming cable and USB Software Key. Notes: Top of
Outputs: Up to 8 injector and 8 ignition.
Suits: Recommended for 4, 6, 8 cylinder, Drive-By-Wire (DBW) or 2, 3, 4 rotor engines, EFI conversions, engines with multiple variable camshafts.
Includes: Elite 2500 ECU with DBW and Race Functions. Premium Universal Wire-In Harness. Firewall grommet, moulded 6 power circuit fuse box and lid. 4 relays, 7 fuses and pins for the 2 spare power circuits. USB programming cable and USB Software Key.
Notes: Top of the range, two-connector ECU. Ideal for popular late model performance and racing applications.
OVERVIEW
ECU OVERVIEW
Haltech's Elite 2500 ECU takes the art of engine calibration to a whole new level. Featuring a robust environmentally sealed waterproof case, drive by wire throttle control, intake and exhaust cam control, short term and long term map learning, dual channel knock control, and much more, the Elite 2500 ECU provides engine calibrators the tools they need to get the job done right. Alongside the Elite 2500 ECU is the Elite Software Programmer (ESP) that brings levels of functionality and user friendliness never seen before in an engine control package. Together they offer true cutting edge technology to tuners and performance enthusiasts worldwide.
- Supports 1 to 12 Cylinder engines
- 2 to 4 Rotor engines
- Normally aspirated or forced induction
- Load sensing by Throttle Position (TPS), Manifold Absolute Pressure (MAP) or Mass Air Flow (MAF)
- Staged, Sequential, semi sequential, batch or multipoint injection patterns
- Distributor ignition systems, multi-coil systems, expand CDI range or Haltech Multiplex CDI systems
- Connect to a wide range of display dashes and expansion devices via CAN.
- Waterproof Case (With Pocket Cover Fitted)
- 8 x Fuel Injection Outputs
- 8 x Ignition Outputs
- 12 x Digital Outputs
- 10 x Analogue Voltage Inputs
- 4 x Synchronised Pulsed Inputs
- 4 x Dedicated inputs (Dual Knock, ignition Switch & onboard MAP Sensor)
- 2 x Dedicated Engine Position Inputs with extensive trigger type support
- Up to 45 channels of Input & Output (I/O) expansion (via CAN)
- USB Laptop communication (Windows)
- ESP Calibration Software - Intuitive and easy to use
FEATURES
ECU FUNCTIONS
- Drive by Wire Throttle Control (DBW) - Requires (2) user defined outputs & (4) user defined inputs
- Low Impedance Injector control with Programmable Injector Peak and Hold Currents & Programmable peak time
- Flex Fuel Function (Direct sensor input) - Tune your engines boost, fuel and ignition by ethanol content
- Flexible tuning setup for Petrol (Gasoline), LPG, Methanol and Ethanol allows you to simply select your fuel type
- Closed Loop 02 Control - Dual bank control for precise tuning (With optional external CAN O2 Wideband Controller Kit)
- Dual Channel Knock Control - Synchronised to engine position with high speed digital filtering for accurate detection
- Variable cam control - Independently control up to 4 camshafts - Requires a minimum of 1 user defined input & output per variable cam
- Closed Loop Idle Speed Control with learning for consistent idle stability Requires 1 or 2 user defined outputs (BAC type) or 4 user defined outputs (Stepper motor type)
- Long term learning (Auto tune) on fuel, ignition, cam, boost & idle control maps (up to 4D)
- On-board data logging - Up to 40 channels of logging at sample rates up to 5ms (200Hz) with 2MB of internal memory
- Laptop data logging -Data log all available channels directly to your laptop's hard drive for both tuning and diagnostics
- Dual CAN Bus communication for Haltech Dashes and expansion devices, Supported OEM CAN & OBDII (view live engine data & set and clear diagnostic trouble codes)
- Injection Stages: up to 4 with individual injector flow rates per injector
- 8 Injector drivers for 2 sequential stages on 4 cylinder & 3 rotor engines and up to 4 sequential stages on 2 rotor engines
- Anti-Lag/Rotational idle - for closed course racing, rally, circuit or drift. Build and maintain boost during closed throttle conditions
- Rolling Anti-Lag - lock to your current (or pre-set) RPM or road speed for roll racing or pit lane limiting
- Launch Control - Control your engines power delivery, RPM & boost for consistent performance at the start line
- Traction Control - Control your engines power output via mappable front vs rear axle or individual wheel speed slip.
ADVANCED TUNING
- Tuning Table Resolution up to 32 x 32 x 8
- Limitless tuning flexibility -Tune your engine by a combination of 4D tuning tables combined with 3D per cylinder compensations and multiple user definable corrections
- tune by a combination of manifold pressure, throttle position, cam position, ethanol content, gear, road speed, race time, EGT, shock travel, ride height or any channel for ultimate flexibility - Dual mapping is a thing of the past.
- Per Cylinder Tuning Correction - 3D
- Wideband O2 - Connect up to 9 Channels via CAN expansion devices
- Thermocouples/EGT (Exhaust Gas Temperature) - Connect up to 12 Channels via external CAN expansion devices
- Engine Protection - Set advanced multi-level limits for sensors and protect your engine against common causes of failure
RACE FUNCTIONS
- Nitrous control with advanced programming of up to 6 stages of wet or dry nitrous kits with on/off delays & banked control options.
- fuel and ignition corrections for all stages.
- Boost Control -Intelligent 4D Closed loop, with learning, flexible user definable axis and 14 fully user definable boost target and duty cycle corrections.
- modes - example boost by gear, road speed, race timer, shock travel, ride height etc.
- Sequential turbo control
- CO2 Boost control, wastegate pressure & position, intake air bleed control (charge pipe wastegate) functionality for the hard-core racer
- Flat shift - Optimise your shifting precision via a combination of inputs such as a clutch switch or strain gauge.
- Shock Travel/Ride Height inputs allow dynamic tuning and data logging to assist in chassis development and power delivery
- Timer Functions - Use the combination of the race timer and 5 additional programmable timers for time based control of multiple engine parameters, power delivery and other user definable functions
- Trans brake function allows smooth and consistent control of start line staging (Bump or Creep)
- Optional Upgrade - Advanced Torque Management - A fully integrated driveshaft RPM target race function that provides the ultimate control and consistency for the serious drag racer, eliminating the need for costly external controllers
RESOURCES
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 573 reviews
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Product Reviews
★★★★★ 5
Easy instructions, comfortable cushions
Color: Pink
I just put it together and I love it!!! It's so comfortable and it was easy to put together. You can rock it back and forth which helps your back. The seat is very wide and the cushion is thick. Pink is my favorite color, and this chair satisfies my pink obsession.
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Reviewed in the United States on May 16, 2026
★★★★★ 5
Wonderful chair
Color: Dark Black
I bought this office chair as a sewing tool, you might say. I felt that having an office chair on wheels would get me from the sewing machine to the ironing board and then to the cutting board and back to the sewing machine. I was having to get up and down to get around to all these places before and this saves me so much time and effort.
I’m 71 so when the box came I was hesitant to try to bust into it and put it together but it went together so easily. It’s very comfortable and the lumbar support feels great on my low back. When I first sat down after the assembly process, the chair cushion tipped down in the front but after contacting the support team I was advised to tighten the tilt tension located under the chair and that fixed me right up!
All and all, my chair is the perfect addition to my sewing area at a very affordable price. I couldn’t be happier!
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Reviewed in the United States on December 31, 2024
★★★★★ 4
Comfortable, affordable, and great for small spaces!
Color: Light Purple, Color: Light Purple
I had previously left a review of two stars, but have since deleted that review after I've owned the chair for a few weeks now. Initially, I stated the chair was uncomfortable and not cushioned at all. But this issue quickly resolved after sitting it for a longer time, it seems the cushion molds to you. So it may be uncomfortable the first few times sitting on it, but it eventually softens. The cushion is now soft yet sturdy. You don't sink in too much, but it's comfortable for sitting for long periods of time. I personally enjoy the mesh back as well, it supports my lower back and doesn't cause back pain. Normally I have to use a cushion of my own to support my lower back for most chairs, but this one actually supports me in a way that doesn't require an extra cushion - so that's really nice.
The chair is fairly on the smaller end, which is perfect for low desks or tight spaces, which is exactly what I wanted. The height can be adjusted, but even at the highest setting, it is still fairly low. Keep that in mind - it may not be super comfortable for those over 6 ft. The arms flip up which makes storing it under a low desk very easy. The cushion is thick and very accurate to the picture. I love that it is lightweight and doesn't make much noise when rolling the chair. It also feels very sturdy. Some of the reviews say it feels flimsy, and I don't know if some are just assembling it incorrectly, because for me this thing is very strong and holds up quite nicely under my weight.
Overall, this is exactly what I wanted for my personal living space. A chair that's not too bulky, but comfortable enough to sit in for long hours. It functions as advertised for this purpose.
One final thing -- the color selection is gorgeous. I bought the light purple color and it fits my setup nicely! Color was accurate to the picture, and looks very cute and adorable in my space.
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Reviewed in the United States on December 21, 2025
★★★★★ 5
Exteremly comfortable
Color: Dark Black
Reasonably priced, very comfortable l, easy assembly
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Reviewed in the United States on May 24, 2026
★★★★★ 5
Surprisingly amazing chair!
Color: Pink, Color: Pink
tl;dr: If you need a chair that has the features of this one, then this one is a winner! Hits above its weight class for sure.
My wife is 5’. She’s small. For whatever reason she ended up with a chair made for big people, like 6+ feet and up to 500lbs type of a chair. She’d often even sleep on it and chill on it. The chair was big enough to fit 2 of her to be honest. It was an expensive chair that I won at some raffle and didn’t like myself. Over the years it ripped (got a cover for it) and even started to get lopsided (from the sleeping) and finally a spring broke (hence the pillow on it in the pictures)
She obviously lives pink. I also wanted to get a chair where she could work and not end ip asleep on. Not like we have a couch or a bed for that 😂.
This chair is very obviously smaller than her previous chair, it’s also significantly cheaper in price and build, it’s also not as durable feeling or stable, and it’s just not as padded. Yet somehow it’s an amazing chair that we both like better than her previous chair???
Like it’s crazy that this chair somehow works better in so many ways. Her desk is modified to be shorter than normal desks (again, she small lol) and her previous chair was just too big. The wheels are also like SUPER smooth, like you can run a chair race easily with it. It rolls over her rug and tucks into her desk (which is in our bedroom) easily. The amount of space this has save us when the chair isn’t being used is a lot. Previous chair was much bigger and didn’t tuck in at all.
The color is nice and the padding is plenty for a small and much lighter than 500lbs woman. I’m 6 feet and 200 lbs and the chair is nice for me as well. My chair is bigger and more secure in the backing, which is similar to this one. The lowest tension setting on my chair is still too high for her to lean back on my chair. This chair has a lower tension minimum and she can easily lean back freely, as well as keep enough tension to work without sagging.
This chair is surprisingly outstanding! I’m sure my wife will destroy it quicker than the last one, but it’s so cheap that even if it only lasts 1-3 years, I’ll happily buy it ones or twice more 🤷🏽♀️. Maybe by then they’ll invent a comfortable titanium chair that’s affordable that she won’t destroy 😂.
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Reviewed in the United States on February 28, 2024