The RF 101mm–89mm Stainless Steel Reducer is a concentric transition fitting pressed from 201 stainless steel, letting you step cleanly between 101mm and 89mm tubing in a single weld. The pressed shape maintains smooth internal flow and eliminates the need for hand-formed transitions or stepped lap joints.
201 grade stainless offers excellent corrosion resistance and high-temperature performance for demanding automotive applications, at a more accessible price point than 304.
Specifications
- Large end: 101mm OD
- Small end: 89mm OD
- Type: Concentric
- Material: 201 stainless steel
- Wall thickness: 1.5mm
Applications
Use wherever you need to transition exhaust diameter — stepping down from a larger collector into a smaller mid-pipe, mating a turbo downpipe to the main exhaust section, or adapting between different system components. Also used for intercooler and air intake piping.
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