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Old 05-03-2005, 07:20 PM   #29
wduvall
Scooby Newbie
 
Member#: 35352
Join Date: Apr 2003
Chapter/Region: MAIC
Location: VA
Vehicle:
2004 STi
Silver/Silver

Default '04 STi knockback

Not sure why I haven’t posted here before or anyone else for that matter but here is my "trouble".

Name: William Duvall

Make: 2004 Subaru Impreza WRX STi

Mileage: ~19,000 miles

Time Out Of Use: none

Scary Moments Of Use: Dozens (I don't have an exact count, sorry)

Problem And Likely Cause: Weak hubs that are flexing and causing knockback

Modifications: TWR 2-piece slotted front rotors for last 9 months which are the same size as stock (mfr claimed) and I still have the stock front rotors.

Submitted For Warranty Work (Yes/No): No

Reason Given For Denial: n/a

Your Story: Severe, my non-expert assessment, knockback after sharp and/or high speed turn. This happens mostly on exit ramps, on and off, and U-turns. After a turn that causes this issue the car has virtually no braking ability until you pump the brake pedal to push the brake pads back to the rotors. I've had to make a hard stop in traffic before when the knockback occurred, unknown to me, and had no braking ability so i had to swerve off the road and upon next attempt to brake I was able to come to a safe stop, as safe as can be expected off the road.
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