You can "retrack" the 205 airflow metre. Gonna do mine soon as it seems pretty simple.

My 205 was running really shit when i first got it but that was due to having a cone filter right above the exhaust manifold. I bought a std airbox and it runs so much better now.

Heres a post on retracking:

http://forum.205gtidrivers.com/index...1&#entry408281