F90 M5 CNC Coolant Tank (Black-Silver Edition)-a billet aluminum sledgehammer to the flimsy OEM plastic reservoir. Built for the F90 M5 warrior who's sick of plastic cracks ruining track days, this tank marries race-grade durability with a menacing black-silver aesthetic, turning your engine bay from "meh" to "mean." The asymmetrical CNC-machined body, beefy mounting tabs, and dual-tone finish aren't just for show-they're proof we built this thing to outlast your M5's turbo boost.
Forget janky plastic barbs that blow under boost-our CNC-machined hose barbs feature a stepped, tapered design that locks hoses in like a vice. No more zip-tie band-aids or coolant puddles in the pit lane; these aluminum barbs laugh at vibration, heat cycles, and whatever abuse you throw at them. If it's connected to this tank, it stays connected.
Ditch the plastic oven that is your OEM tank-this coolant reservoir is carved from solid billet aluminum, so it dissipates heat like a boss. The polished silver internal channels and matte black outer shell don't just look sick; they pull heat from your coolant faster, keeping your S63 engine cool when you're flat-out on the autobahn or carving canyons. Plastic cracks? Aluminum conquers.
We didn't skip the small stuff: the tank's outer shell is wrapped in a precision-knurled, diagonal texture that's equal parts tough and tactile. It's not just for looks-this grip ensures the tank stays put under hard cornering, and the textured finish hides scratches and grime like a pro. Your engine bay will look clean, even after a weekend of beating on your M5.
Peek inside the threaded filler neck, and you'll see a laser-etched level marker-clear, crisp, and impossible to misread. No more squinting at murky plastic or guessing if you're low on coolant; this little detail keeps you in the know, so you can focus on driving instead of checking fluid levels. Simple, effective, and very TM Performance.
The TM Performance F90 M5 CNC Coolant Tank (Black-Silver) isn't just another replacement part-it's a rejection of flimsy OEM plastic. Built for the M5 owner who tracks hard, modifies hard, and refuses to settle for "good enough," this billet aluminum tank delivers zero leaks, better heat dissipation, and a menacing look that matches your car's attitude. No more plastic cracks, no more coolant surprises, no more compromises. If you're done fixing cheap factory parts and ready to upgrade to something that works as hard as you do-this is it.
