ive had work done on my old car by tdp,injectors fitted,z32 fited power fc fitted and car mapped cost 604euro car camwe out with 282bhp 312touque which was good power from standard 180sx turbo.car ran like shit when cold idle anywhere between 700>2200rmp when warm car went good except for knock level hit 1040.tdp blamed z32 wanted me to pay for fitting of another 1 and also to get it remapped which never happend as i sold 2 weeks later.my friend has had 2 cars mapped buy tdp no problems and due to take a 3rd ther in comeing weeks.i have my silvia booked in for next week at westward eng next il let ye know how it goes.and either way james deane with 350 or 380 is a gifted driver whats 30bhp to him lol