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Rein Automotive is a trusted brand in OE-quality replacement parts
It improves engine performance by enhancing turbocharger efficiency
These replacements were designed for your Porsche and are to be used with direct injected turbocharged engines
This product also goes by these part numbers: 251721401A
known for quality and long service life in both OEM and aftermarket applications
Bosch Rear Oxygen Sensor 13823 - Audi A8 (1997-1999) Classic VW Rein Automotive is a trustedThis Bosch rear oxygen sensor (part 13823) is designed for the Audi A8 with 4. 2L or 3. 7L V8 engines from 1997 to 1999 (D2 generation). It monitors exhaust oxygen content to optimize air fuel mixture, improving fuel economy and reducing emissions. As a direct plug in replacement, it installs easily without modifications. Key Features & Benefits Heated Sensor: Reaches operating temperature quickly for accurate readings at startup. Direct Fit: Plugs
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