Upgrade an existing 3800 Timer AC4 to the current model 3850 Timer AC4. 3800 does not need to be fullu functional to qualify for this trade-in upgrade program. 3800 is shipped to RaceAmerica, a factory new 3850 is return shipped back with full 90 day warranty. All existing cables, sensors, emitters, displays used with the 3800 are fully compatible with the 3850. |
