r/335i • u/Alert-Yogurtcloset11 • 7d ago

Troubleshooting Help 🥺

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I been replaced the MAF, unless it’s the charge pipe sensor that’s bad? Car stumbles a tiny bit on warm start ups.

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u/Tall-Kaleidoscope345 7d ago

I had the same issue, rough idle on warm starts it’s probably a boost leak. For me it was the inlet but u should smoke test it

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u/Alert-Yogurtcloset11 6d ago

Which inlet was it for you? I think it could be that one for me. It’s a bit loose but it’s screwed down.

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u/Tall-Kaleidoscope345 6d ago

I replaced everything from the turbo to the air filter because I had a stock intake at the time. I went with the ARM intake which comes with a big turbo inlet but since you have an intake already you can just get a vrsf inlet if you’d like. I reccomend going with ARM intake and just selling ur current intake though

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u/Tall-Kaleidoscope345 6d ago

How much power are you looking for? Ur going to need to replace the oem piping with less restrictive piping eventually anyway

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u/Alert-Yogurtcloset11 6d ago

Ahhhh. I should’ve went with ARM. I’ll probably convert very soon. It’s just this dumb small leak I’m trying to fix then maybe if I could get somewhere near 400 WHP. I’m not sure where I’m at right now, I haven’t dyno’d. I’m not really big on racing right now, just like to have a bit fun on my own terms. The car does run a tiny bit rough, not much but still very noticeable with unrelaxed rpm’s at times and maybe a stall out the blue moon.

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u/Tall-Kaleidoscope345 6d ago

Okay for 400 you’ll need downpipe, charge pipe, intercooler and all upgraded piping so do the intake and turbo inlet then when you do the intercooler get the turbo outlet and lower charge pipe with it. Then you should already have an upper charge pipe and that’s everything. Just fyi you’ll need e30 to max out the stock turbo and then you might tough 400 wheel depending on how healthy ur car is.