Holley EFI 553-201 EFI Terminator X Handheld Controller
Key features
- •Full Color, Backlit 3.5" Touch Screen LCD
- •Laptop-Free Tuning changes to help optimize mileage, driveability and performance
- •Basic Tuning options allow simple adjustments of Basic Fuel, Fuel Learn, Basic Idle, Spark, and More!
- •System Tuning options allow modifications to Outputs, Engine Setup, Ignition Setup
- •Advanced Tuning options allow fine tuning of Fuel, Closed Loop, Learn, and Idle (including IAC parameters and Idle Spark)
Holley EFI 553-201 EFI Terminator X Handheld Controller
List Price: $468.73$421.86DEALYou Save: $46.87 (10%)
Free shippingFree Returns – 30 daysFree Order CancellationSecure Payment2–3 Days DeliveryGet It June 23, 2026In Stock (5)No marketing spamNo account requiredFulfilment by FedEx / Amazon / UPS / ShipwirePayPal / Card Buyer Protection
