[sA x sKy]

Originally Posted by persian54

Assuming the N55 is similar to the S65, this is part of the start up cycle to get the cats warmed up quickly (whether you have cats or not, the BMW cycle works as if you have them [unless you tune/modify the software])

on the S65, it's easy to turn off this feature with a flash tune.
We don't have piggybacks so I cannot comment if it's possible on a piggyback

Not a bad idea though.

Give me your S65 Shay!

[Juiced46]

BMW will never come out with a software update to quiet the cold start down. Like mentioned its like this to warm the cats up. This is for emissions purposes. They are basically messing with timing and cam positions to do this until it is warm.

[IancoleTX]

Originally Posted by persian54

Assuming the N55 is similar to the S65, this is part of the start up cycle to get the cats warmed up quickly (whether you have cats or not, the BMW cycle works as if you have them [unless you tune/modify the software])

on the S65, it's easy to turn off this feature with a flash tune.
We don't have piggybacks so I cannot comment if it's possible on a piggyback

Not a bad idea though.

Excellent insight. I didn't know that was the case at all. If possible on the n55, disabling that feature for us catless folks would be amazing. I'll ask Terry.

[IancoleTX]

Welp, Terry said that disable the "cat warm up" program on cold startup is unfortunately not possible at this time, and neither is controlling the idle. Looks like we'll have to live with it, sadly.

[E90Company]

Are you sure it sets off alarms? Lol people with muffler deletes dont even

[IancoleTX]

Originally Posted by E90Company

Are you sure it sets off alarms? Lol people with muffler deletes dont even

Yeah, not legit OEM alarms but crappy aftermarket setups with poorly tuned sensitivity. I set off one in my parking garage at home and one at work. PITA.