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R66M-70978

Egr Delete Kit Includes Egr Plate, Gasket (not shown), exhaust manifold plug and (2) m8-1.25 x 16mm stainless steel socket head cap screws


This kit fits a the 4.0 3FE Motors.


1990 - 1992  4.0 L 3956 CC L6 3FE

Egr Theory:

In internal combustion engines, exhaust gas recirculation (EGR) is a nitrogen oxide (NOx) emissions reduction technique used in gasoline and diesel engines. Egr works by recirculating a portion of an engine's exhaust gasses back to the engine cylinders. In a gasoline engine, this inert exhaust displaces the amount of combustible matter in the cylinder.

Why this is Important and Reasons to Delete the Egr Valve:

When the engine is forced to re-breath gasses from the exhaust, the engine is denied that much fresh air (oxygen). So what happens is that the engine cannot reach it's full potential since there is not as much oxygen to burn. The end result, less power. Granted, it is a small amount, but if your trying to achieve maximum power / efficiency, deleting the Egr system is a good step. Another reason that you may want to delete the Egr valve is if it has failed, which they do, and many are very expensive. Making a block off plate a much cheaper alternative. Last but not least, Egr valves are ugly and bulky. Delete to clean up and dress up your engine bay.   

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