BMW X5 and X6 Forum (F15/F16) - View Single Post

3X3=5 · 08-14-2017, 05:15 PM

I've already done the MPPK and Race Chip on my 35i, and it's pretty quick but I'm looking for a little more.

For those that have done a catless downpipe on their 35i, do you find that there is increased exhaust smell? If so is it bothersome? I've read the check engine light may (or may not) come on at times. Has anyone found any kind of plug in module/override for this? It sounds like there's a significant power gain to be had with a catless downpipe, but I don't want to end up with a smelly car and CEL coming on.

Before anyone replies that I should have just gotten the 50i, as I mentioned in another thread I didn't do so because of the frequent repairs on my E70 50i. Perhaps that was a mistake as it sounds like the reliability has significantly improved with the N63tu, but regardless, here I am with my 35i that I'm otherwise happy with.

08-14-2017, 05:15 PM	#1
3X3=5 Lieutenant 117 Rep 557 Posts Drives: in a lot of traffic Join Date: Jul 2010 Location: Seattle iTrader: (8)	Catless downpipe and CEL / exhaust smell I've already done the MPPK and Race Chip on my 35i, and it's pretty quick but I'm looking for a little more. For those that have done a catless downpipe on their 35i, do you find that there is increased exhaust smell? If so is it bothersome? I've read the check engine light may (or may not) come on at times. Has anyone found any kind of plug in module/override for this? It sounds like there's a significant power gain to be had with a catless downpipe, but I don't want to end up with a smelly car and CEL coming on. Before anyone replies that I should have just gotten the 50i, as I mentioned in another thread I didn't do so because of the frequent repairs on my E70 50i. Perhaps that was a mistake as it sounds like the reliability has significantly improved with the N63tu, but regardless, here I am with my 35i that I'm otherwise happy with.
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