I drive a BMW E34 525TDSA Touring from 1992. This is a 2.5ltr Turbo Diesel Intercooler.
My question is:
What will be the effect of enlarging the intercooler??
Will it increase or degrease my horsepower or torque?? Or will it stay as is??
This because I'm thinking to place a Rieger E39 M5 look-a-like front bumper and to place my Intercooler behind it.
This is the bumper I mean: