The engineers over at Turner have quite a cool project here! 🔥 The Turner Motorsport E46 M3 Reinforced Billet Diff cover is definitely something they put a lot of heart into, and rightfully so. But why would you ever need to upgrade you may ask yourself? Easy, if you're trying to push your car past its limits, you need an upgrade. Not to mention, this upgrade offers you enhanced strength being made out of billet aluminum. What other kind of upgrades do you get you may ask? Sure; let's talk about how it has an increased capacity over stock, improves cooling, and comes with upgraded fill & drain plugs. However, one of the coolest features has to be the ability to run an external oil cooler for all you motorsport fiends. You may ask yourself, what else could be cool about this? It's available right now - the team over at Turner has concluded development which means it's ready to go right now. All you need to do to start getting the most out of your E46 M3 is by searching up ES#48...