Catalog/ Boats/ Mercury/ QSD 4.2
← Mercury QSD 4.2 engines

Mercury QSD 4.2 350 HP 350hp (257kW) 704Nm

I · 350 hp
Stage 1
OriginalAfter tuningDiff
Power hp350 420 +70
Torque Nm704 850 +146
Power gain
+20%
Torque gain
+21%
Ready to feel these +70 hp on the road?
Get your ready-to-flash Stage 1 file for the Mercury QSD 4.2
Order tuning file →
Stage 1 file from €95
Exact price depends on the ECU — confirmed when you upload the file
✓ Original file back-up ✓ Delivered in ~30 min ✓ Support included
Power graph / Stage 1
PowerTorqueStock
dyno graph