Originally Posted by NewhouseEnt
What are the options for less than a few grand that would drop it to 3.9 seconds?
Nothing. If Vishnu could tune the regular engine, they would've released a product for E90 back in 2005 and made tons of money. btw, no other product can "drop" the M3 for almost 1/2 second for less than a few grands. I may look at $10k.