The Subaru Link G4X Plug-in ECUs offer the latest in engine management technology, designed to easily maximize the potential from your car. This ECU fits inside the factory OEM enclosure. Installation is a breeze, with no alteration of the factory wiring loom required for the models listed below. We recommend these ECUs when you plan to use your Subaru when you've built beyond the point that works well with a stock ECU & Cobb AccessPort. This point typically occurs above 500-600 WHP or with extensive modifications that are not supported by Cobb AccessPort tuning. This ECU provides much more control and engine safeties than we can can achieve using the stock ECU and allows for modifications beyond what the Cobb AccessPort can support. What's included: Link G4X Plug-In ECU Link CAN AFR Module Expansion harness for extra inputs E-Tuning: E-Tuning for Link ECU is available here to purchase as well. https://www.boostedperformancetuning.com/products/link-ecu-tuning-subaru
