charles28 138 Report post Posted August 29 My 135i has over 600bhp, so the stock Calipers and Discs struggle. I have Ferodo DS2500 pads and good fluid, however I don't think this is enough haha. Is there a more cost effect upgrade for me other than buying SLG adapters, F80/f82 Calipers, Discs and pads? Quote Share this post Link to post Share on other sites
charles28 138 Report post Posted August 31 I've worked out a cost effective solution. Along with upgraded pots in my oem calipers I'll use oem M3 CSL 345x28mm rotors. 2 Quote Share this post Link to post Share on other sites
