I love my Turners, but any of the manufactures are gonna be a good choice they all make quality products.
Highly recommend an ESS tune as well, you won't be disappointed.
2015 BMW M4— Mineral White on Sakhir Orange/Black DCT
2012 BMW S1000RR — Racing Red/Alpine White - Sold
2009 BMW M3 Coupe — Alpine White on Fox Red, DCT - Sold
2003 BMW M3 — Carbon Black on Black, 6MT - Sold
1995 BMW M3 Coupe — Cosmos Black on Black - Sold