It is in the Camaro6 link -
The new 1LE package for Camaro 1SS models includes magnetic ride control, with a new FE4 suspension tuning and a new, segment-exclusive electronic limited slip differential (eLSD). Paired with massive Goodyear Eagle F1 tires, lateral acceleration will exceed 1G. Additional features available on the 1LE package include standard Recaro seats and a Performance Data Recorder (PDR), new to the Camaro lineup.
The paragraph before, on the V6 model, says it is available on the 1LT and 2LT. May just be an oversight but I thought I read that elsewhere.