When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Your car may have more airflow at idle then the ranges of the low trim. The stock low to mid trim crossover is at 56hz. If your car is flowing more then that at idle, you need to adjust the "Closed Loop - LT Trim Control".