Re: custom maps
I had my Stilo (petrol) remapped and gained about 10% improvement on BHP and it was noticeable. My mate had his Clio (diesel) done at the same time and gained about 38BHP and it was very noticeable.
Tomorrow I am having my GT done and the gains should be 45-50BHP. Remaps are great, immediate gain for little layout, remember you get better gains on diesels and the improved power/performance output puts further stresses on your engine and components and reduces engine life by 10-20%.
No mechanichal changes are required but I always marry a remap to a K & N filter. Some people choose to upgrade suspension and brakes too, which is understandable but not essential as you won't be ragging your car all the time (will you?).
I use Angle Tuning, Nige is the friendliest, helpfulist, mentalist guy ever and he knows his stuff.....................................