[Dutt1113]

i have an 2007 e90 335i sedan and am thinking about upgrading the exhaust system to something that is deep and aggressive. i was thinking about the Top speed pro-1 catback exhaust system. I have heard youtube videos of this exhaust on a 335i and it sounds awesome. I just have a few questions. What is the pros and cons with cat-back like this one vs cat-less exhaust systems? Will changing the exhaust on my 335i throw off any dash lights or anything?

[ES BMW]

There aren't any sensors after the downpipes so you're fine in terms of check engine lights.