Fab9 Tuning presents: Spartan 3 Lite V2 Wideband Controller

Precision. Speed. Repeatability.

When you’re dialed-in on the tune, you need a wideband controller that keeps up. The Spartan 3 Lite V2 from 14point7 is one of the most refined wideband solutions we’ve used—and we believe it delivers the fastest responding and most repeatable configuration data of any wideband we’ve worked with.

Why we trust it

• With a quoted 10 ms response time, this controller gives near-instant AFR/Lambda feedback so you can confidently tune transient events, boost spikes, and rapid load changes.
  

• Factory-calibrated to 0.01 λ accuracy (for Bosch LSU 4.9/LSU ADV sensors) with no free-air calibration required—out of the box, it’s ready to log, tune, and monitor.
  

• Built tough: water, dust and dirt resistant, with a wide operating temperature (-40 °C to +105 °C) and only a 4-wire install in many setups.
  

• Analog 0-5 V linear output mapped for tuning gear, plus programmable simulated narrow-band output for seamless compatibility with OEM-style gauges and ECUs.
  

• Backed by a 2-year warranty (double many competitors) and a 60-day money-back guarantee.
  

Fab9 Tuning’s recommendation

For high-performance builds — especially where transient accuracy, AFR repeatability, and quick response matter (turbo Miatas, track/road hybrids, street/strip builds) — we consider the Spartan 3 Lite V2 our go-to wideband controller. Its combination of speed and consistency makes it ideal for detailed calibration work where small errors add up.

Application Highlights

• Perfect for tuning setups with rapid load swings: forced induction, throttle stab/dump, gear changes, etc.

• Great as a standalone data-logging solution or validatable “source of truth” for AFR under any condition.

• Ideal when you need a compact, robust wideband controller that behaves well in the engine-bay environment.

What you’ll get

• Spartan 3 Lite V2 controller (choose from Controller only, or Controller + LSU 4.9 sensor bundle)

• Pre-calibrated and ready to wire — with installation guide/manual included.

• Built in the USA and tested by tuners who demand high repeatability in real-world tuning sessions.