ok ya stock is 4 bar fpr and 240cc injectors. and most people seem to recommend a 5 bar fpr for the basic k04 file, which baffles me since the aggressive files use smaller ones[&:]but i guess thats just the way the programming was written. make sure you get a real 5 bar fpr not a cheap "fake" one. most 5 bar fpr's are crushed 4 bar fpr's and a real one is one that wasn't a crushed 4 bar OEM fpr but rather one that was made specifically to be a 5 bar fpr.

o and pc-16 is 2.8~3.2 bar fpr not 3.0~3.4 like i originally said. (depends on wether or not you have RC injector or red tops)

 

FYI
Cheap FPR's : http://www.eurospecsport.com/fuel.htm
(especially the adjustable one)

 

on the injectors note.... i talked withAWE a couple days ago and was talking about how the hammer file got discontinued for 2001 models. Im buyin the K04 file for my car and he said that they currently updated the K04 file and thats why they discontinued the hammer file as well as the pc-16. He said the hp and tq gains are greter as well as they tweaked a couple other things. HOWEVER, he said that the 5bar fpr and 380cc injectors were recommended when getting this!!! He said they sold them but is 380cc injectors realy necessary??!!

 

ya hammer file is 380cc injectors. pc-16 is 310cc, and j31 is (i think) 317cc. they're all slightly different. hammer got discontinued i think but i never heard they discontinued pc-16. i heard something about afxk04 file or something a little while ago. maybe that replaced them.