TWM Induction- Halmeter AF30 Air Fuel Gauge
I have a used halmeter af30. I was going to use this on my M3, but have since changed plans. This gauge can be hooked up to a stock O2 sensor, or you can add one, to get the readings for rich/lean fuel mixtures. A must for turbo cars, can also be used on NA cars. Has a 30 bar LED readout for maximum accuracy. Can be used for any car. Item in used condition.
Let me know you're interested.
$88.88....way cheap for the price i bought it for!
All the best