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Old 01-11-2021, 01:20 PM   #4
undyjr
Scooby Specialist
 
Member#: 459692
Join Date: Dec 2016
Chapter/Region: South East
Location: Hampton Roads Va
Vehicle:
2019 WRX STI
silica black

Default

The initial symptom has hissing/whooshing sound during WOT. Comparing datalogs in particular the lower WGDC showed a pre-turbo exhaust leak. After torching off the heat shield (kinda sketchy, not recommended) and using an inspection mirror I found the 1 inch split. Without a doubt extended periods of WOT fatigued the flex joint. If you never go WOT past 4th you'll probably be ok.
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