BM3 Stage 2

[Jars914]

I just installed my catted downpipe yesterday, car sounds super mean! Was looking to go stage 2 with my bm3 tune today, now I'm reading the requirements and its saying for a front mounted intercooler , damn i wish i read the tune requirements a month ago lol. Just wondering who's running stage 2 on here and what intercooler they went with, or if they kept it stock and is that even safe. Thanks guys

[beats]

I'm not using an intercooler and haven't had a problem. If you are on the throttle a lot I could see how it would be a problem (e.g lapping) however for regular street it's fine, at least in my climate.

[Jars914]

Originally Posted by beats

I'm not using an intercooler and haven't had a problem. If you are on the throttle a lot I could see how it would be a problem (e.g lapping) however for regular street it's fine, at least in my climate.

Awesome thanks for the feedback

[Blue4Series]

which downpipe did you get?

[iamvietness]

maybe not a requirement but they put that on there so you can't come back at them or post online that the numbers they claimed is false if your vehicle doesn't hit it

[Jars914]

Originally Posted by Blue4Series

which downpipe did you get?

Evolution Racewerks catted downpipe

[Jars914]

Originally Posted by iamvietness

maybe not a requirement but they put that on there so you can't come back at them or post online that the numbers they claimed is false if your vehicle doesn't hit it

yeah that could be it, so far the engine hasn't showed signs of overheating with the stage 2 flash and no upgraded fmic. Im still looking to purchase one soon, may as well treat the engine good being that its being pushed to its capacity

[NYC_X5]

Originally Posted by Jars914

yeah that could be it, so far the engine hasn't showed signs of overheating with the stage 2 flash and no upgraded fmic. Im still looking to purchase one soon, may as well treat the engine good being that its being pushed to its capacity

When’s the last time you did your spark plugs?

[Jars914]

Originally Posted by NYC_X5

When’s the last time you did your spark plugs?

I bought the car used at the end of 2018, had it serviced by bmw twice, not sure if they did spark plugs, car has 43k on it

[GDumpling]

Originally Posted by Jars914

Evolution Racewerks catted downpipe

I got the same, do you get some kind of air leaking sound from the DP? I checked if there's any air leak but nothing that I can feel

[Jars914]

Originally Posted by GDumpling

I got the same, do you get some kind of air leaking sound from the DP? I checked if there's any air leak but nothing that I can feel

I really cant tell where the sound is comin from, i guess the dp area in general? Im getting used to it but i feel like there has to b a reason i hear it

[GDumpling]

Originally Posted by Jars914

I really cant tell where the sound is comin from, i guess the dp area in general? Im getting used to it but i feel like there has to b a reason i hear it

Oh so you’re getting it too. So apparently it’s because all the air that’s rushing out from the engine that makes it sound like air is leaking from DP

[beats]

I have the same sound with my VRSF downpipe. Not a fan, but I can accept it for the performance gain..

[Jars914]

Im glad im not the only one experiencing this lol

[StatenEye]

Originally Posted by Jars914

Im glad im not the only one experiencing this lol

Waste gate rattle, we all have it.

[juxtapose]

Do you feel a real big difference between the Stage 1 vs Stage 2 with the DP? I'm on BM3 stage 1 and the torque feels like it lvls off after 3rd gear.