Perrin Turbo Sump Restrictor WRX 2015-2019 / Forester XT 2014-2018
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Many customers experience a burning oil problem or blue smoke coming from their exhaust after installing aftermarket J-Pipes or turboback exhaust systems. Installing these parts on 2015+ WRX's or 2014+ Forester XT's causes a change in exhaust pressure, allowing engine oil to escape out the turbo seals. This leaks into the exhaust creating the burning oil smell and blue smoke that many people see. Cars with catless J-Pipe setups experience this issue much more than cars with high-flow cats.
WARNING: Cancer and Reproductive Harm
took me a week to install this because i was waiting for the pvc hose replacement at the dealership once arrived they event did full installation of this product. smoke reduction was incredible.
fast and excellent service by IIR/ Dane
Installed it and the smoke was gone I dont smell oil all I smell is gas (since I'm running catless) sump restrictor really works
My car smokes on idle especially on traffic lights or parking lots and its so bad that i would turn off the car and start it again. Then I found this part from perrin and i gave it a try. The install was ok its just you have a tight work space so i decided to take off the entire hose lol. My order didnt come with iir sticker when people on youtube got one :( also i was hoping a perrin 8" sticker not a small one hehe
I’m not even catless (Cobb high flow catted j pipe) and this worked like a charm. No more smoke. Definitely worth it.