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The Supertech Inconel exhaust valve +1mm oversize is a single replacement specified for Audi V8 40-valve engines. Offered as an individual part, the oversize +1mm dimension is noted in the description and identifies this valve as the intended replacement for compatible Audi V8 40V cylinder heads where an oversized exhaust valve is required.
Supertech Audi V8 40V Inconel Exhaust Valve- +1mm Oversize - Single
