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  1. Problem Diagnosis
    My engine was rebuilt a few years ago at around 40,000 miles by Subaru under warranty. Ever since then I have noticed problems with cylinder 1 but I was able to fix the problem by occasionally changing out the spark plugs. The car is at 63,000 miles now and has a Boomba bypass valve and...
  2. Articles: Power Mods
    So i have a 2004 WRX STI. It is the EU version with the EJ20G Closed Deck engine making about 275 HP Crank and about 250 HP Wheel. I want to build it for about 600 to 700 Crack HP and to be SOMEWHAT reliable(I know its never gonna be fully reliable and I am ok with that). I have found many...
  3. Newbie Forum
    Hey all, I just recently got my hands on a '06 Saab 92x Aero! I am not new to cars and mechanical work but I am new to tuning. I am looking to slowly build my car up into a more and more fun track car while minimizing risk as much as possible. I know modding makes reliability worse no matter...
  4. Engine

    Shot of Engine
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