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V8 swap need cats


JoshT

Well-Known Member
Supporting Member
V8 Engine Swap
TRS Banner 2012-2015
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Location
Macon/Fort Valley, GA
Vehicle Year
1999
Make / Model
Ford
Engine Type
V8
Transmission
Automatic
2WD / 4WD
4WD
Doing Explorer V8 swap on my 86 Ranger. Will be using the Explorer's EFI system, not that it really matters for this thread.

To get the truck running I am going to piece together a system from some exhaust tubing I have from other vehicles which I think is 2.25" and pieces from the parts house. It may be a little undersized, but since I'm running dual exhaust from the manifold down each side of the truck it'll work fine for my purposes for now. When I get it professionally done I'll probably be getting probably 2.5" run about the same way.

To the point, I need catalytic converters. They ain't cheap so I would rather buy a pair for 2.5" exhaust tubing and reduce to what's there, that way I won't have to buy them twice. Will this work okay?

Any recommendations on which cats to get?
 
Last edited:


Scott B.

Member
EMT / Paramedic
V8 Engine Swap
Joined
Sep 5, 2008
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202
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Location
Georgia
Vehicle Year
'93
Make / Model
Ford
Engine Size
5.0
Transmission
Automatic
Doing Explorer V8 swap on my 86 Ranger. Will be using the Explorer's EFI system, not that it really matters for this thread.

To get the truck running I am going to piece together a system from some exhaust tubing I have from other vehicles which I think is 2.25" and pieces from the parts house. It may be a little undersized, but since I'm running dual exhaust from the manifold down each side of the truck it'll work fine for my purposes for now. When I get it professionally done I'll probably be getting probably 2.5" run about the same way.

To the point, I need catalytic converters. They ain't cheap so I would rather buy a pair for 2.5" exhaust tubing and reduce to what's there, that way I won't have to buy them twice. Will this work okay?

Any recommendations on which cats to get?
It should work OK.

MagnaFlow and Flowmaster both make aftermarket cats - much, much cheaper than any "direct fit" factory replacement.
 

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