Executive order
D-175-7
Hypermax Engineering, Inc.
Vehicle applications
No vehicle applications were preserved for this order.
Part records
| Part number | Model/specification | Modification | Remarks |
|---|---|---|---|
| 1991 and older Ford vehicles powered by 6.9L or 7.3L Navistar International heavy-duty diesel engine. E.O. valid for kits with turbochargers: AiResearch models: 465124-5007 w/ area ratio of 1.00, 465124-5006 w/ area ratio of 1.15 | Replacement of OEM exhaust system with a 3 1/2" diameter exhaust system |