Hello fellow BMW Users
Recently purchased a BMW 525d SE Touring (Automatic), lovely drive and my first diesel
I would like to lets say tweak the performance abit and improve the mpg, I have been told E-Maps are the best choice
Would like to know, what can i do after this ? I've heard of Diesel Dump valves, though yes doesn't give any performance increase, though does the diesel turbo engines have the old problems of the petrol turbo engines of turbo lag
If so is the dump valve any good for this? or is it a totally waste of time...
Any tips would be appreciated
Again new here and new to diesel so please, I'm a genuine guy here asking for help and tips