M3AN 4016 Report post Posted February 22, 2021 (edited) @m325i - I was being cheeky when I said don't ask but your question about cost is valid and I believe in increasing community knowledge. I could share my absolute cost but that's irrelevant in this space, it depends so much on deals, relationships, discussions and timing that it's not a fixed cost. Expect to pay about $2k to get it done properly, assuming no extras. Edited February 22, 2021 by M3AN 1 Quote Share this post Link to post Share on other sites
leichtbau 525 Report post Posted February 22, 2021 Nice one! I've really believed in gearbox and diff ratio massaging ever since seeing the Mines R34 GTR absolutely molest Tsukuba with "only" 600hp, there's tangible real world benefits to shifting away from the galactic ratios BMW offered from factory. 1 Quote Share this post Link to post Share on other sites
M3AN 4016 Report post Posted February 22, 2021 Yes, the way that I can explain it is that it's the same fun, just delivered more quickly. Quote Share this post Link to post Share on other sites
