Vishun PROcede/Active autowerke
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,
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.
Price new: 725 USD.
My price: 450 plus shipping.
Next is a Active Autowerke (BOV) kit.
Everything you need to replace the factory BOV
Price new: 550 USD.
My price: 300 plus shipping.