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      12-25-2014, 05:00 PM   #86
135i_vs_
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Drives: M5, 135i, 335d, F10 550xi
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Quote:
Originally Posted by dumalei View Post
Do I still need this if I have the tune with EGR, SCR and DPF deleted?
The catch can prevents blow by (engine oil+soot) to get recirculated into the intake stream.

ERG block prevents Exhaust gases + soot to be recirculated into the intake stream.

I would think a catch can installation would help more with preventing excessive carbon build up, as oil is not being introduced causing a sticky situation.

I kept EGR intact for 2 reasons: Warranty purposes. Engine warms up a lot faster.
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