Quote:
Originally Posted by GT500R
Quote:
Originally Posted by 440iGCCB
I've done multiple flashes and I trust a piggyback more these days with the factory DME left to its own logic. I'm in the minority I'm sure, but I also ran 5 different piggybacks and never had a good experience with JB4/stage1, and a jerky delivery from AA active-8.
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That’s very interesting. I am not sure I would trust a box to alter signals to the DME making it think things are one thing when they really aren’t... interesting. |
Personal experience. Protunes and flashes (APR, Cobb, GIAC) all had issues. If we are talking Bmw MPPK flash, 110% preferred. I don't trust after market engineers rewriting all the tables, eliminating bmws stock code. From experience, I have been safer with leaving Bmw tables to figure out these conservative additive 3-4psi boosts targets. Also with the b58 from what I understand, piggybacks work quite well due to the wideband O2 sensors for AFR. Seems to be fine for me so far.