I have put about 5k into my 01 s40 and increased it to 255hp at the flywheel, even though this is a big improvement over stock most of it is contributed to the turbo and my off the line acceleration sucks, I was woundering if anyone knew how to get their 0-60 time down, I already have new exhaust, ecu, intake

 

The S40's are very bad for turbo lag.They take a while for thte turbo to kick in.
I haven't heard of a fix as of yet.