Originally posted by Azhrei:
ok my bad i did not mean 21psi , it was for ZetecRacing



and as I said the ONLY way you would see gain even with a MSD type of setup is if there was a problem with the originals BTW the MSD units either advance or retard the spark to adjust fuel management or boost the spark levels for higher power requirements from larger injectors and what not doesn't give you the HP just allows you to make the HP that is there

2003 Subaru WRX some mods Even if you don't have the answer, you certainly have to admire the problem. aka ZetecRacing