i was reading about a cossie that was smoking and the car had the middle box removed , and the performance ford said it will be smoking more cos it has lost some of the pressure that is needed any 1 know if thats right as mine is simlar to this ,,

hope this psot is ok in this section

 

only one word for that - BOLLOX !

 

yeah reducing the exhaust back pressure with a to free flow exhaust system can cause oil leakage from the turbo oil seals

 

Correct!!