Tuned Mercedes Engine HP & Torque Output

If you are looking for what a mercedes engine makes tuned you have found a good article to answer the question how much horsepower does a tuned mercedes engine make.

• M276 V6
  • Stock Rated 328hp 350 Tq
  • Tuned ~410hp ~ 464 Tq
    • Source OETuning
    • Sold as 400, 450
• M278
  • Stock Rated 350-460hp
  • Stage 1 Tuned 500-585 hp
  • CLS OETuning: 469 awhp vs 384 awhp stock, 590 AW TQ vs 484 AW TQ
    • Sold as 450, 500, 550
  • Stage 2 Tuned 580-640hp
    • Methanol +100-140hp
      • ~780hp
  • Stage 3 Tuned ~720-900hp
• M157
  • Stock 550-585 HP, 520TQ
  • Stage 1 Tuned 701 HP, 830 TQ
    • Source Alpha Performance 
  • Stage 2 Tuned 685 WHP, 765 WTQ 
  • Stage 3/4 1000HP 900 TQ 
• M177
  • Stock ~595 HP & TQ
  • Stage 1 Renntech Tuned 665 HP 670 TQ
    • Source MBworld
  • Stage 3 950hp 800tq 
• M178
  • Stage 4 900hp 750 #/ft TQ
• M133
  • Stage 3 500 hp 560 #/ft TQ
• M156
  • Stock 451 - 622 HP 469 -479 #/ft TQ
    • Most dynos I've seen show about 430 rwhp
  • ROW Airbox + Filters +10-20 hp
  • Weistec ECU Tune 520 hp 
  • Stage 2 672 hp Weistec
  • Stage 3 740 hp Weistec