Haven't tried any other ones, but I've been using noXplode for a while now. Like using it, tastes good, kicks in fast, does what I need it to.
2008 335i 6MT - Dinan tuned stge 2
1986 325es - SOLD
2012 BMW X3 35i AW on RB Msport - JB3 @ 4.0PSi over stock, 20x9F and 20x10.5R Stance SC-5ive, H&R lowering springs. - SOLD
2006 BMW 330i - //M rep kit with custom exhaust, H&R springs, 19" VMR - SOLD