This W205 C43 came in for a Stage 2 upgrade  and the results speak for themselves. Here’s what went in: Decat downpipe Custom dyno tune Switchable burble on deceleration  (Sport+ only) Power Gains Untuned mods:  234.5 AWKW / 577 Nm torque After custom tune:  274 AWKW / 667 Nm torque 💥 Massive gains across the low-to-mid range , making the car drive like a whole new beast . Next Step Upgrading to better intake filters  will unlock even more performance potential. 🔥 Ready to