on stock internals you can easily maintain 500 whp i have an article in my Sport Compact Car magazine of a guy with a 500 whp srt-4. He wanted to prove for 5grand u can have a 500 whp pocket rocket.
They are going to be canceling production for 2006. But with the new line of dodge compacts and the addition of the "world motor" there are rumars of a possible RWD srt-4 in 2007. In 2005.5 they will realease the long awaited ACR (just a really nice handling package rims and brembos) along with a new color, white. The 2003 vs 2004-2005 only difference is the 04-05 have lsd and larger fuel injectors with a reworked pcm. The 04-05 Srt-4's are rated at 230 horses and 250 ftlbs of torque but it seems to be underrated. People are dynoing stock srt-4s for 225 whp and 245 wheel ftlbs.
I would Def recomend checking out Srtforums.com and looking at a sticky under the srt-4 discussion forum. It is titles "everything you want to know about the Srt-4 and everything u didn't want to know."
If u have any other questions about anything either PM me or E-mail me at
[email protected] Gluck with a new srt-4. I love mine so i am sure u will
