So yeah picked up my x back in the summer, and just noticed that both exhaust tips had sooty accumulated at the bottom?

Is that supposed to be normal with the stock tune and thus it running a bit rich so unburnt fuel gets to the back?

Basically, being a new car I expected the chrome to be chrome, but when I looked there were those soot spots on the tips.

Is this normal? It isn't showing codes or what nots but just wondering if it should be something to be looked at. I mean i see accord v6s and bmws with very clean exhaust tips and isn't a turbo supposed to kind of help with this issue by re-burning bits of the exhaust?

 

Pretty sure it's normal, I just bought a 2015 over the summer as well. Mine gets sooty, but it cleans off easily when I wash the car.

 

re-burning bits of the exhaust??? What do you mean by this?

Anyway, there's nothing abnormal. You'll just have to use some elbow grease and clean if you want shiny exhaust tips.

 

NVM got it confused with EGR, oops.

and yeah it is just sooty, not like burnt on or something, guess these things just run super, super rich stock.

 

Stock tune = rich. Once you get tuned that lessens considerably.

 

Yeah thats normal, if you get a tune it'll help a bit. I don't have a cat so WOT pulls make a nice cloud you can see in the rear view

 

After years of X ownership and running various levels of boost, tunes, and different driving conditions, I can tell you that the soot never goes away. Welcome to the club.

 

Sure it does. Just have to paint over it with high temp black. Problemo solvedo. Lol

 

now i have to wonder, does this thing spit fire at stock tune? maybe if it was very hot day or something and I let the throttle go from WOT and it dumps all the fuel out

 

Welcome to internal combustion engines?

 

90% sure the old honda accord with the mighty i4 vetc (yo) does not dump that much excess fuel nor does it get that hot in the exhaust system.

im kind of new to this kind of hotness

 

Cool story. Every car that has a combustion engine that burns gasoline has soot out the exhaust.

Enjoy the car and welcome to driving.

 

not every car leaves a mark like that in 6 months, which is why i asked.

when i walk around the carpark and see bmw 3 series i don't see them, nor the v6 accords / camrys / mustangs / camaros, and nvm the other normal cars

i think i saw some on a m3?

hence i asked. because this thing is new and i never had experience with something like this.

 

We must be talking about different things then. Good luck!