thought this might interest some people. from their facebook page.

"OFFICIALLY AVAILABLE TO ORDER! Cartuning Performance is very excited to finally offer our deep sump 4T65E pan for sale. This pan is the result of much research and development concerning line pressure fluctuations that lead to many 65E failures. This pan adds 3 quarts of fluid capacity, and drop the filter to the very bottom of the pan. This upgrade completely eliminates line pressure fluctuations due to poor drain back, high G force acceleration, or hard cornering. The exposed aluminum surface, extra 3 quarts, and eliminated slippage due to consistent pressures greatly helps with cooling the transmission, as we have seen an average of 20f lower temps.A magnetic drain plug is included with the kit, along with the filter spacer adaptor (billet 6061 aluminum). This drain plug is intended for easy pan drops, not for complete drains of a transmission as it will still leave 1/2" of fluid in the pan. The pan is made of 300 series aluminum and has been throurouly tested for rigidity and strength."