Sale

Link ECU

G4X Plugin Engine Control Unit

$1,625.00 $1,595.00 Save $30.00

SKU: 237-4000

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The Link ECU Plugin G4X ECU is a direct-fit engine management solution for various Honda and Acura models featuring K-Series and select D-Series engines, exclusively for manual transmissions. It boasts advanced features such as up to 6D fuel and ignition mapping, precision closed-loop cam control for up to four cams independently, and sequential fuel delivery. The ECU supports digital triggering for all OEM patterns and includes support for OEM idle hardware. For forced induction setups, it offers 5D boost control with three switchable tables and continuous barometric correction via an onboard sensor. Motorsport enthusiasts will appreciate features like antilag, launch control, and flat shifting. Data logging is comprehensive, with stats recorded into on-board memory and real-time selectable dual fuel, ignition, and boost maps. The unit includes a USB tuning cable and features a 4-pin powered CAN connector for connecting CAN devices, which also provides a protected 12V power supply and ground, protected by a self-resetting 3A fuse. It is compatible with Honda Integra Type R DC5 (2002-2004), Acura RSX (2002-2004), Honda Civic Type R EP3 (2001-2005), Honda Civic Si/SiR (2001-2005), Honda Civic DX/LX/HX (2001-2005 with D17A1/A2/A3 engines), and Honda CR-V (2002-2004 with K24A1 engines). Important notes for installation include verifying ECU connector compatibility, confirming it is not compatible with automatic transmissions, and requiring the CANJST4 cable (Code 101-0198) for CAN device connections.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandLink ECU
Part Number237-4000
CategoryIgnitions and Electrical

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy