So I have just bought my 3rd r56 cooper S and this time i want to modify it. i have been offered a T25 tubular manifold and a big old turbo, What power is the standard engine safe to? Any insights at all is super appreciated.
Had my Cooper S now for around 2 months & ive read up on having it health checked prior to any serious performance modifications.
its a R53 52 plate Cooper S with only 36k on the clock so if all is well she should be able to take a custom remap and a new SC pulley ?
What should i do firstly...