Quote:
Originally Posted by dsc888
Quote:
Originally Posted by roundel335
It's just the muffler...the MPPSK is for the 340/440 LCI models with the B58 engine and includes the tune plus the exhaust. The MPPK was designed for the 335/435 with the N55 engine. It's a tune that basically raises the boost by about 2 PSI and adds the exhaust "burble", plus a new bottom half for the intake box with an additional opening for added intake sound. It also tweaks the shift points on the 8AT slightly. The MPE gives the exhaust a deeper tone.
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Thank you, roundel335! That was very helpful. It's interesting that BMW created both a MSPPK and a MPE upgrade for us B58 owners. I can't justify spending >$3,000 with installing and tax for the MSPPK myself. But I can swing the $900 for the MPE. It looks easy enough to install myself based a few YT videos I saw for the 335i. |
I think the car still needs programming added for it to work properly.