2008 Subaru Impreza Sti power train problems
11 owner complaints filed with NHTSA name the power train on the 2008 Subaru Impreza Sti — 33% of all complaints for this model year.
What owners report
“What is the issue? Basically the firewall is so thin that it flexes terribly every time the clutch or brake pedal is pressed. The big problem is the way the clutch/brake assembly is secured to the thin firewall. It only has 6 small spot welds that rip off the firewall after time. This makes it so…”
filed Sep 14, 2017
“The clutch bracket on the firewall has only 4 small tack welds from the factory. This bracket takes all the force of your leg pushing in the clutch every time you change a gear. It appears to be very common on the subaru wrx sti for these small tacks to break away from the firewall and cause…”
filed Dec 31, 2014
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
This announcement provides information on the remanufactured CVT transmission program.
SubaruNet Announcement (R · Other · issued May 4, 2026This bulletin announces the service manual correction regarding clutch master cylinder reservoir service procedures.
03-97-26 · Service Bulletin/Repair Instructions · issued Apr 24, 2026
Other reported problem areas on the 2008 Subaru Impreza Sti
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.