D15, D16, D17 and Mini-Me swaps
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By Apexracing
#287049
TrailerTrash wrote:
eg84dr wrote:i got 43 mpgs with my eg running no cat and ALL egr and evap removed from my rebuilt d15b cruising 70-75 highway


what exactly is the egr and evap stuff?

and what does it do


Fuel evap and egr- exhaust gas return. Its a way to use up un burned fuel. Makes the cars run cleaner.