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Originally Posted by darkrom

Are you asking if you have RB's or something and didn't know it?

I'd say thats impossible unless for some foolish reason you don't have a JB4 yet. You'd know if you were making mega power wouldn't you?

I am curious how a set of RBs would perform on a bone stock tune, my guess is probably not very well at all.


What makes you think you have anything but the stock anyway? Turbos are expensive, I doubt anyone would just trade it in without swapping with stock turbos first. Its like throwing away a few grand.

Yes, precisely.

I am under the impression I purchased a preowned 135i equipped upgraded hybrid turbos.

Current Mods:
JB4 G5 ISO Map 7
E85 Backend Flash
E60
BMS 3" kittyless down pipes
Berk Race Axle Back
BMS DCIs
ER Charge pipe w/ Tial Q BOV
VRSF 7" FMIC w/ upper charge pipe
Walbro 255 lpfp

The reason why I believe this to be so is because I and others believe my car to be excessively fast.

I have comparison videos to other cars but I do not believe them to be appropriate for this forum.

My question is, does having a waste gate rattle necessarily mean I have oem turbos?