This part is a catalyst, exchange, (core return number is #c1620017), for Opel, and Vauxhall cars. It fits for Opel Astra, Vauxhall Astra for Europe, and the UK. It's a genuine General Motors part with an OEM part number R1620017.
This catalyst 100% fits for General Motors cars. It's made of top quality materials, it has passed not only all manufacturer's tests but also General Motors quality control and has to endure rough road conditions over a long time.
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