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smiddy

2009 335i E91 Port Clean Before And After

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Sure 335 owners have seen plenty of port/valve before and afters, but this is up there!

Around 10mm of carbon around stem and face, rapt with results, Wurth LBW 400 was used, no Walnut.

N54 335i Port Clean After.jpg

N54 335i Port Clean Before.jpg

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Was the product introduced into the inlet system with the engine running ? Or by what other means ?

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No, intake removed, valves closed, port filled with solution, via gun, left to dwell, sucked out with air driven vacuum pump.

Two cycles i believe, as in two applications.

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Excellent result, you have me all motivated to do mine now. Whats the seat of the pants dyno say?

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So smooth the power delivery! Really strong between 3 -5k RPM.

Have 6 index 12 in now also, can hear them flowing through the mid range.

Will upgrade IC and inlets soon I think.

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