"The SRT "Viper" oil filter 5038041AA MO041 uses a leaf spring for bypass that operates at higher pressures than conventional filters. It's designed to flow 9 to 11 gallons per minute. It traps 21 micron nominal and 90% over 10 micron. The SRT filter features a higher differential pressure bypass valve and reduced pressure loss across the filter element. A higher differential pressure to bypass the filter at cold starts and high demand (Meaning the SRT Viper filter bypass stays closed more often and filters more oil)."
"SRT engineer round table Q&A April 15, 2014
Q. A lot of owners are starting to use the SRT Viper oil filter on their 5.7, 6.1 and 6.4 engines (SRT filter # 05038041AA). Is there any advantage (or disadvantage) in using this filter vs. the standard Mopar filter?
A. The SRT Viper filter flows better than the stock Purolator filter and requires a higher differential pressure to bypass the filter at cold starts and high demand (Meaning the SRT Viper filter bypass stays closed more often and filters more oil). Both filters will work on the 5.7/6.1/6.4."
"From the SRT Engineers:
The SRT oil filter for all the past engines and the new 22mm inlet SRT filter for the Gen 4 and beyond engines share the same characteristics. We worked with many of the filter suppliers to get the best features. Some fell out for various performance reasons but we ended up developing the current SRT filters with one of the mainstream manufacturers (it is different than their commercial offerings - or at least was when we developed it). The high flow oil pumps in our large engines (Viper is the biggest) can overpower the internal relief valve. When this valve opens it allows some of the high pressure dirty oil to bypass the filter element in order to keep the filter from being damaged. The SRT filters do indeed have a higher differential bypass valve to make sure all the oil delivered to your powerplant is clean. The housing is slightly thicker than many of the brands out there to handle the pressure but is not the thickest. The real thick ones failed our development testing (fractured at the crimped flange). The media used was one of the latest synthetics that allowed very fine filtration, more debris capacity, and much lower restriction than our standard Mopar filter (and just about every other filter out there)."
"Use oil filters with fleece or synthetic material for the filter media the Mopar 041AA and the Wix 899XP are synthetic media filters. either one can be used on any Hemi engine '09 - present, including 392 and the Hellcat engines. Fleece oil filter media is required - there are paper elements in "knock off" brands, and cutting corners on oil filters is not the way to go."