Hello @ll

As you can see , its not so good .

About car : checked on fwd not 4x4, with check engine ( 16804 P0420 Catalyst System Efficiency Below Threshold (Bank 1) ; 2 lambdas brand new, new MAF , new NGK, 250HP program . 2001 AMK , 150 000 km .

Any ideas how 2 reach 250HP and 350 Nm ?

How much this 16804 affect power ?

Many thanx

Adam