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Thumbnail Filmstrip of 1994-1997 7.3L OBS Powerstroke SS Bellowed Up Pipes AVP UP73OBS Images
Factory OBS 7.3L up-pipes rely on crush donuts between the exhaust manifolds and turbo. When those joints leak, drive pressure drops and EGTs climb. AVP UP73OBS is a stainless bellowed up-pipe kit that replaces that leak-prone feed system on 1994.5-1997 Ford 7.3L Power Stroke trucks.
The kit uses stainless piping with internally shielded expansion bellows and a ductile-iron turbo Y-adapter, with gaskets and hardware in the box—no core return required.
What you get
- AVP stainless bellowed up-pipe kit, UP73OBS
- Stainless up-pipes with internally shielded expansion bellows
- High-strength ductile iron turbo Y-adapter
- Gaskets and hardware included
- No core charge / no old up-pipe return
- Fitment: 7.3 Power Stroke 1994.5-1997 OBS
- Sold by Full Force Diesel
Specs
- Part number: UP73OBS
- UPC: 708744252517
- Material: stainless steel piping; ductile iron Y-adapter
- Bellows: internally shielded expansion bellows
- Replaces: factory exhaust manifold-to-turbo feed pipes
A common upgrade while the engine or transmission is already apart. Verify fitment for your truck before ordering.
Factory OBS 7.3L up-pipes rely on crush donuts between the exhaust manifolds and turbo. When those joints leak, drive pressure drops and EGTs climb. AVP UP73OBS is a stainless bellowed up-pipe kit that replaces that leak-prone feed system on 1994.5-1997 Ford 7.3L Power Stroke trucks.
The kit uses stainless piping with internally shielded expansion bellows and a ductile-iron turbo Y-adapter, with gaskets and hardware in the box—no core return required.
What you get
AVP stainless bellowed up-pipe kit, UP73OBS
Stainless up-pipes with internally shielded expansion bellows
High-strength ductile iron turbo Y-adapter
Gaskets and hardware included
No core charge / no old up-pipe return
Fitment: 7.3 Power Stroke 1994.5-1997 OBS
Sold by Full Force Diesel
Specs
Part number: UP73OBS
UPC: 708744252517
Material: stainless steel piping; ductile iron Y-adapter
Bellows: internally shielded expansion bellows
Replaces: factory exhaust manifold-to-turbo feed pipes
A common upgrade while the engine or transmission is already apart. Verify fitment for your[...]
Factory OBS 7.3L up-pipes rely on crush donuts between the exhaust manifolds and turbo. When those joints leak, drive pressure drops and EGTs climb. AVP UP73OBS is a stainless bellowed up-pipe kit that replaces that leak-prone feed system on 1994.5-1997 Ford 7.3L Power Stroke trucks.
The kit uses stainless piping with internally shielded expansion bellows and a ductile-iron turbo Y-adapter, with gaskets and hardware in the box—no core return required.
What you get
- AVP stainless bellowed up-pipe kit, UP73OBS
- Stainless up-pipes with internally shielded expansion bellows
- High-strength ductile iron turbo Y-adapter
- Gaskets and hardware included
- No core charge / no old up-pipe return
- Fitment: 7.3 Power Stroke 1994.5-1997 OBS
- Sold by Full Force Diesel
Specs
- Part number: UP73OBS
- UPC: 708744252517
- Material: stainless steel piping; ductile iron Y-adapter
- Bellows: internally shielded expansion bellows
- Replaces: factory exhaust manifold-to-turbo feed pipes
A common upgrade while the engine or transmission is already apart. Verify fitment for your truck before ordering.
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3.67/5 Stars out of 3 Reviews
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William R Somerville (Fruita) | March 21st, 2021
I ordered these for my 96 obs. The fit was pretty close, and they look good. I only gave 3 stars because they were angled slightly incorrectly. I had to dent the drivers side pipe and shave a section of the head down. I had the cab pulled, so it wasn't that difficult, but it would be much more difficult to install in the back yard.
Proposition 65 Warning Information -
P65Warnings.ca.gov
Fits: 7.3 Powerstroke 1994-1997
California Restricted
Fits: 7.3 Powerstroke 1994-1997
Fits: 7.3 Powerstroke 1994-1997
Fits: 7.3 Powerstroke 1994-Early 1999 w/Bellowed Up-Pipes