Up for sale is the well-known PROcede tuning box from Vishnu Performance for the BMW 335i with the N54 biturbo engine (also works on the 135i, 1M Coupé or Z4 with the same engine). This is the latest version 5 Rev.3, not used and therefor without VIN lock; it can therefor be installed and used immediately, also with bigger turbos or a meth kit.
Without any hardware modifications you can extract an extra 100hp from your 335i, with additional hardware mods (intercooler, DPs, intake) even more, and with meth more than 450hp are possible.
I'm selling this box as I haven't used it for the tuning of my car in the end. I only bought it in order to have several options for the tuning of my upgraded turbos.
Price new: 725 USD plus customs and VAT
My price: 450 GBP plus shipping (should be around 20 GBP I think)
That's how it looks:
An overview about the functions of the PROcede can be found here: Vishnu-Tuning Website / PROcede
FYI: The PROcede disposes of an inbuilt speed delimiter and suppresses the cat codes for people with catless downpipes.