The 2.9L RB26 swap in place of the stock Nissan SR20 is easy to zero in on here, but it's not the modification that has made the most difference outright to lap times and driver confidence... What are the downsides of swapping a SR20 for an RB26? Why not use an RB30? What are some advantages drive by wire (DBW) throttle control gives? What are some key considerations of traction control for motorsport? Does motorsport ABS really make a difference? With the ability to get 1500hp from this setup,