thanks dep i am biulding my car so i will just get the uppipe and you suggest the pde where can i go on the web to look at it. and what injectors do you suggest i am looking to be around 400hp everyday driver.

 

http://www.fastwrx.com/pdeflexuppipe.html

Here is a link to a site that sells the PDE flex up pipe. I'm not saying you should buy it from them but at least you can look at a blow up photo to get an idea of workmanship.

Gilmore is right on with his recommendation for the Walbro 255 L/hr fuel pump. I prefer Perrin injectors but Power Enterprises (PE) is solid as well. His recommendation of 860 cc injectors is right on for a 400+ whp car. Remember that injectors are rated for a certain flow rate, at a certain fuel pressure. For instance, at lower fuel pressures, the injector will be rated to a lower flow rate.

I like Perrin because they are modified Subaru STI injectors, they are modified and Guaranteed to work. They are plug and play - all you have to do is tell the computer what flow rate they are running at.

http://www.perrinperformance.com/Pro.../Injectors.htm

400 whp is a serious street car - my STI is running at 340 to 350 depending on the tune (on 92 octane pump). I can get up to 400 with race gas and a more aggressive tune.

 

oh here is a cool thread on the DB 20G...

http://forums.nasioc.com/forums/show...6#post10949096

I would recomend Forced Performance turbos. They have been R&Ded for Subaru STIs. I went with the Red. Slightly more capcacity than the FP Green (a very popular choice) with a slightly slower spool up. Overall you get a very solid and smooth powerband all the way to redline.

http://linux.forcedperformance.net/m...egory_Code=WRX

This next link is cool...

The is Jeff Perrin's STI (The owner of Perrin Performance)... It is running with a FP Green turbo and with race gas is over 400 whp.

http://www.pdxtuning.com/featured_cars/jeffp.htm

Again, hope this helps