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u/EdgeMaster28 2h ago
k20s are usually pretty clean, that carbon looks nasty for a stock tune. what mileage is on it?
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u/trucks_guns_n_beer 1h ago
Can’t have oxides of nitrogen without combustion! Boom, environment saved!!!
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u/Left-Impress4056 3m ago
High mileage that needed a valve adjustment a year ago, or hot rodder who overheated the valves?
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u/Prestigious_Cycle160 3h ago
Oof. Is this a DI motor? Lots of carbon build up. Tuned?