[Zanza]

Originally Posted by Robyn90

On Dyno, power at wheel....

I bet for ECU re-mapping or flashing them cannot gain for more than 3-4HP...

and in real life 15 HP, cannot make u feel much difference...

My friend has 325i and installed the 3000cc replacement kit and supercharged it with VF then having some minor tuning like exhaust system, Gruppe M Intake and of course ECU remapping

He can gain around 40 HP... after losing around 20,000 USD

so it is totally impossible to gain 15HP from ECU flashing only...

Did you do a baseline dyno so you could accurately compare, or did you just assume it made the factory hp before the mods? I have a hard time believing that a boosted three liter can only make an extra 40 hp. I'm assuming this is a euro 325i, because the American 325i's are 3.0L.

How much boost was it running, 2psi?