2009 wrx sedan with 15000 miles tuned at CFT.
what would be the best solution to this:
tech inspected the exhaust and engine and found oil on the intercooler. tech inspected the intercooler and found it split on the passenger side - appears to be a result of overboost. tech inspected the turbo and found the wastegate bypassed. issue appears to be a result of boost pressure not being properly regulated as designed and overboosting through the intercooler, causing intercooler failure. tech notes the turbocharger assembly may also be damaged, causing the excessive oil blow-by. tech recommends to replace the intercooler assembly and reinstall the wastegate hoses at an estimated cost of 455$. and inspect the turbocharger for further damage. vehicle has an aftermarket turbo-back straight-pipe exhaust and external wastegate.
would an bigger aftermarket intercooler with a new tune be a good idea?