Originally Posted by briansx5
Can anyone comment as to why the BMS Stage 1 tune is so inexpensive compared to the Velos? For a 50i they claim to both produce the same increases, yet one is $1000 cheaper.
He doesn't apply the 'BMW tax' maybe?
Terry's interaction with the community is second to none: www.n54tech.com
Honest down to earth vendor with a huge following, proven results - the JB4 holds most if not all of the N54/N55 records and in my opinion, the tunes basically sell themselves.
He has an M5 testbed running a beta right now so you should be seeing something for the S63 very soon: http://www.n54tech.com/forums/showthread.php?t=23156