Since we last left off with our Subaru build, we repaired and upgraded our EJ25 cylinder heads with a set of Kelford R-199-B (264/260 duration) camshafts and Supertech valvetrain, and got the head ...
CHICHESTER, UK – The Prodrive P25 made its public debut last weekend at the Goodwood Festival of Speed, and while there, Prodrive Chief Engineer Richard Thompson took us through some interesting ...
Watch this 500+ HP 2007 Subaru Impreza STi during a dyno session, featuring a screamer pipe setup, turbo sounds, and visible exhaust flames. The car is powered by the well known EJ25 turbocharged ...
Overboosting. A turbocharged engine's worst nightmare and root of disaster that claimed the life of millions of healthy engines around the world. Rewind the clock back to 2010 when my '05 Subaru ...