Owning a 2005+ Subaru Impreza WRX STi isn’t all smiles and boost. There are a few things that are prone to failure, luckily all of them are well known.
1.) Inner CV Boot on passenger side likes to die at 55k miles
2.) Stock Pistons aren’t bulletproof and can have failure under poor tuning conditions
3.) Oil Pickup failure
#1 There isn’t much you can do except enjoy the car and fix it when it finally decides to tear
#2 Get a good tune as soon as possible, don’t risk a poor tune even for a few highway pulls, get a pro tune and enjoy the car.
#3 Oil pickup failure isn’t something to be taken lightly, unfortunately if and when this failure happens the engine is toast. The Oil Pickup will crack, and it will no longer do its job. The crack will starve the engine of oil and you will cause catastrophic damage. Luckily, there is a solution. Killer B Motorsport developed a more robust Oil Pickup that wont crack!