2009 335i E91 Port Clean Before And After

[smiddy 76]

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.

[B.M.W Ltd 950]

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

[smiddy 76]

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.

[Herbmiester 938]

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

[smiddy 76]

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.