Nope, but I did have a Banks kit put on the '98 Santara 460 Ford and it did make a difference.
I also installed the full kit on our '02 DSDP Cummins ISC 350 and it made a serious difference there too.
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft
Charter Good Sam Lifetime Member, FMCA, SKP
RV'ing since 1957, NRA Benefactor Life, towing '14 Jeep JKU Dragon Edition