Key Features & Benefits – Stainless steel exhaust pipe reducer 2" to 2.75" (51–70 mm)
Stainless steel exhaust pipe reducer – 2" to 2.75" (51–70 mm) – 137 mm length is designed to bridge two different outside diameters when joining pipe sections or adapting a pipe to a larger/smaller connection point.
Made from stainless steel with a mirror-polished surface, this reducer is listed for exhaust/turbo/intercooler/intake piping where a 51 mm to 70 mm (2"–2.75") OD step is required.
When is this useful?
Useful when your build mixes 2" and 2.75" OD piping and you want a clean transition piece to plan a clamp-style or weld-style joint.
Technical specs
- Type: adapter/reducer
- Size (OD → OD): 51 → 70 mm (2" → 2.75")
- Listed length: 137 mm
- Wall thickness (small OD side): 1.05 mm
- Wall thickness (large OD side): 1.0 mm
- Material: stainless steel
- Surface: mirror polished
- Listed application: exhaust / turbo / intercooler / intake piping connections
- Listed tolerance: ±1 mm
- Package quantity: 1 pc
- Part number: EP-BJ51R70
Selection & installation tips
- Measure your piping outside diameter (OD) to confirm you need 51 mm to 70 mm.
- Many components are specified by inside diameter (ID); match OD-to-ID correctly for your joint style.
- Test-fit dry and confirm insertion depth and clearance for the 137 mm length.
- For clamped joints, use correctly sized clamps; for welding, prep edges for full, even contact around the circumference.
- Account for the listed ±1 mm tolerance and base final fitment on real measurements.
Before fitting, self-verify OD sizes (2" to 2.75" / 51–70 mm), joint style (OD/ID), and available space for the 137 mm length, then compare them to the specifications listed above.
