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Old 03-20-2008, 09:34 PM   #17
Honest_Bob
TST Ruined My Life!
 
Join Date: Dec 2005
Location: Easton, PA
Member #1179

My Ride:
05 WRX Wagon

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I was attempting to do the same thing you were. Here is the list of parts I was gonna do to squeeze the most out of the stock turbo.

1) EBAY Topmount - less heatsoak, smoother boost response, not really gonna get you any hp.
2) Headers - Gain some top end, 5-10hp. Meh...
3) External waste gate dumped to atmosphere. Should be good for around 20hp, decreases spool up time, creates rock solid boost control. Downsides: Very expensive, might need new injectors (I did because I'm 2.0) and fuel pump, and your gonna need a retune.

Then while your installing everything for the waste gate your gonna be sitting there thinking "all I need now is a turbo".
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