What to do to gain some power/torque
I would like to tune a bit the queen but I have a limited budget. I would like to gain some hp / torque notably to see the car more responsive in lower rpm. 420xd 190hp, B47O.
I'm looking for easy installation solutions. I have no knowledge of aftermarket parts nor software and I have no clue on how a diesel engine works, totally noob.
Thanks
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