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Perrin Turbo Sump Restrictor 2018-2024 WRX / 2019-2023 Ascent / 2020-2022 Legacy XT / 2020-2023 Outback XT - PSP-ENG-630 - Subimods.com

Perrin Turbo Sump Restrictor 2018-2024 WRX / 2019-2025 Ascent / 2020-2025 Legacy XT / 2020-2025 Outback XT / 2017-2018 Forester XT

$48.45
$57.00
$57.00 - $57.00
$57.00
$48.45 - $48.45
$48.45
-15% -15%
84 In Stock, Usually Ships within 1-2 Business Days
SKU PSP-ENG-630
by Perrin Performance

DETAILS

Fix both the burning oil smell and blue exhaust smoke problems by installing the PERRIN Turbo Sump Restrictor! 

The PERRIN Turbo Sump Restrictor makes the turbo sump pump more effective at sucking oil out of the turbo sump. This in turn creates a slight vacuum on the turbo sump creating a proper balance of exhaust pressure and vacuum on the turbo seals, significantly reducing the amount of leaking around the turbo seals. This does not change the oil flow to the turbo or create any wear.

Many people experience a burning oil problem and blue smoke coming from their exhaust. This problem can worsen after installing a cat-back exhaust, J-pipe, or turbo-back exhaust system. The installation of these parts can cause a change in exhaust pressure that allows engine oil to escape out of the turbo seals, causing the burning oil smell and blue smoke. The PERRIN Turbo Sump Restrictor quickly eliminates this issue!

Key Features:

  • Eliminate burning oil and blue smoke
  • No tuning is required after installation
  • Makes the turbo sump more effective
  • Creates a balance of exhaust pressure and vacuum on turbo seals
  • Reduces the amount of leaking around turbo seals
  • Does not change oil flow to turbo

Note: This does not fit the 2025 WRX, please see PSP-ENG-628. 

Included:

(1) PERRIN Sump Pump Restrictor
(1) Size 6 Clamp
(1) 1/4 - 28 Plug

Installation Instructions

Customer Reviews

Based on 28 reviews
96%
(27)
0%
(0)
4%
(1)
0%
(0)
0%
(0)
100.0
D
Dan N.
Turbo sump

straight forward install.

User picture User picture User picture User picture User picture

Dan,

Thank you for your 5 Star Review of the Perrin Turbo Sump Restrictor. Glad to hear the install was straightforward.

Regards,

B
Brad A.
Better safe than sorry!

Quick add while I things torn apart to install a new charge pipe. Stock clamps are a bit of a PITA to remove. Easier to remove the whole hose assembly and then assemble everything on the workbench before reinstalling in the car. Added all new work drive clamps to get rid of the stock single use clamps.

User picture

Brad,

Thank you for your 5 Star Review of the Perrin Turbo Sump Restrictor. That is a smart preventive add-on and great install tips as well.

Regards,

B
BuckBranko
Turbo sump

This did help get rid of the oil smell after putting on a turbo back exhaust (catless).

BuckBranko,

Thank you for your 5 Star Review on the Perrin Turbo Sump Restrictor. Glad to hear it helped eliminate that oil smell post-exhaust upgrade!

Regards,

O
OhNoJoe
Install is cleaner than a Nuns browser history

21’ WRX installed looks OEM (which I loovvee) aside from the Perrin badge you would never know, just be careful while disassembling the OE parts being reused cause I was cussinnnnnnnn for a lil bit , cause I read the instructions after I almost jacked it all up , don’t be dumb like me

Joe,

Thank you for your 5 Star Review! Your install story gave us a good laugh — the Perrin Turbo Sump Restrictor really does blend in like OEM. Excellent advice for future installers too!

Regards,

M
Mando
Noticedable difference

I noticed a noticeable difference after getting this installed. The clamp was a little bit difficult to break off but onnce off the process was a piece of cake.

Mando

The Perrin Turbo Sump Restrictor is a great mod, and we are glad you noticed the difference. Enjoy the improved performance and thank you for your 5-Stars!

Regards,

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