This post talks about PnP intake and timing number…
This RS4 B7, with Milltek catback, did 372ps 420nm which is about average for an untouched RS4. Flowing 144 gs on the MAF, this was slightly lower than average
We did a full Carbon Clean, Stage2 inlet manifold with locked runners and deflapped (original runners had play and not fully opening), a cold air feed with high flow air filter, gutted the precats and a stage 2 MRC Remap.
Now this does 442ps and 484nm, with quiet start, linear throttle response, sec air disabled and full throttle in all gears.
How does a normally aspirated car make such big gains? Flowing 178gs, a 20% gain in airflow alone. Running 31 degrees timing stock with 5-6 degrees retard, this went upto 37 degrees timing with no retard. The graph shows the gains in timing advance and airflow.