Curious whats the best mod for power gain for $1000-$2000? My car has no current mods.
Ive been reading a little about the Dinan Stage 2 , JB4 , and Cobb tuner and those all seem like they are probably the best options but whats the main difference between the 3? I know jack about the BMWs as i just got my first one on saturday
Ive been reading a little about the Dinan Stage 2 , JB4 , and Cobb tuner and those all seem like they are probably the best options but whats the main difference between the 3? I know jack about the BMWs as i just got my first one on saturday