I realize that most of you in the USA have petrol driven X5s but incase
anyone interested,I am currently working on a project to install either the 4.4 rear quad exhaust trims or the 4.6is rear double trims on my Diesel X5.The problem with my rear silencers is the lack of space as they are not of the "straight through" design like the other petrol X5s.The exit pipe comes from the rear of the silencer where it goes thru a loop and then points downwards so as to prevent the black smoke from bothering the following driver under hard acceleration.It seems that the only solution to have 4.4
or 4.6is look alike rear trims is to install straight through silencers and then weld on the preferred exhaust trims.A bit like the Supersprint and Remus rear silencers available for my car (+1,200 euros!!!),except I prefer the oem
look with no engraving on the trims.Once I finished I will post some pictures
with installation notes.This will be my contribution to X5 World since you have
helped me a lot with other articles,including the fitting of the 4.6is front and rear spoilers.