Ok when I bought my 13 ST it had a frpp tune on it. Was installed by ford. The car had very good low end power. Like off idle to 3500rpm. Pulled ok after that but that's about it. If u did a lot of city driving stop and go traffic this tune would be decent because of the low end. So i bought a accessport from stratified installed Cobb stage1 93 tune. I felt this tune didn't have the low end the frpp tune had but pulled a little harder up top. Btw on the 13 model u can put the accessport tunes on and it will save your frpp tune and reinstall it if u unmarry it. Next I put stratified stage1 93 tune on. It felt pretty close on the bottom end to frpp but pulled much harder throughout the rpm range. Lastly I currently run e85 stratified tune. This tune pulls better everywhere, much better! This tune has spoiled me. To give u example of power difference 50 to 80 in 3rd gear pull is about 4seconds with e85 tune. Same amount of time with frpp tune and I'm only at 75mph. 5mph is a big difference. Haven't tested the Cobb or stratified 93 tunes yet. Also my only mods are green filter and the frpp front snorkel. Just giving members my observations. Thanks for reading.