as the owner of b4 ireland motorsport ive tryed all different remapping software so it was time to check out ecutek software it only cost 500 euro.it increased boost to 1.4bar and mapped for 95 ron safety the power of the b4 [japspec] sti jumped from 298bhp at the wheels to 349.9bhp at the wheels after just 5 mins of remapping!this remap is one of the best and cost effective way to increase power in a b4 yet.the only problem i have is the check engine light.[error code]v1-v2 i cant find out what this means anybody no?