Warm start. Installed on a 2020 WRX with no other power modifications other than the catback. I recommend removing the installed silencer at the tip and purchasing the Grimmspeed OEM J-pipe to catback adapter and multiple hole exhaust hangers (2) for the muffler. Using stock exhaust hangers will place the tip of the exhaust up against the bumper. Filled unused exhaust hole with a cover from Subispeed. Excuse the dirty car. Links below for parts used.

Exhaust:
[ Ссылка ]

Grimspeed OEM J-pipe to aftermarket catback adapter:
[ Ссылка ]

Hangers:
[ Ссылка ]=

Passenger side exhaust hole cover:
[ Ссылка ]

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