The PERRIN Turbo Sump Restrictor is designed to fix the burning oil smell and blue exhaust smoke problems commonly found on 2018-2022 Subaru WRX models equipped with FA20 or FA24DIT...
The PERRIN Turbo Sump Restrictor is designed to fix the burning oil smell and blue exhaust smoke problems commonly found on 2018-2022 Subaru WRX models equipped with FA20 or FA24DIT engines. This simple upgrade improves turbo seal performance and eliminates unwanted oil leaks without affecting turbo oil flow or requiring tuning.
Features:
Eliminates burning oil smell and blue exhaust smoke
No tuning required after installation
Improves effectiveness of the turbo sump pump
Balances exhaust pressure and vacuum on turbo seals
Reduces oil leakage around turbo seals
Maintains proper oil flow to the turbo
Why You Need It: Aftermarket exhaust upgrades like cat-back or turbo-back systems can alter exhaust pressures, causing turbo seal leaks that result in burning oil smells and blue smoke. The PERRIN Turbo Sump Restrictor restores proper pressure balance and vacuum on the turbo seals to prevent leaks and improve reliability.
Installation: The plug-and-play design installs easily on 2018+ Subaru WRXs with no cutting or tuning necessary, making it a quick and effective upgrade.
