Overview
- The upgrade centers on an MHtronik powerbox and stainless-steel exhaust, with quad 100-mm tips for a more aggressive sound.
- Reported outputs differ by outlet, with BMWBLOG citing 473 hp and 630 Nm and PistonHeads quoting about 480 hp and 465 lb-ft from the powerbox alone.
- Exterior changes include carbon-fiber add-ons, a Larte Design front splitter, diffuser and spoiler, Manhart decals, 22-inch Concave One wheels, and a lower ride via new coupling rods.
- The featured vehicle retains stock brakes, though Manhart offers uprated braking hardware on request.
- Manhart has not released official performance figures, and BMWBLOG estimates a 0–62 mph time of roughly five seconds for the tuned xDrive40i.