Vibrant -4AN to 1/8in NPT Oil Restrictor Fitting Kit

Vibrant -4AN to 1/8in NPT Oil Restrictor Fitting Kit

Marsoni

M251S

$25.50

Get it in 3 business days with 1 day shipping. Friday, May 29

Vibrant -4AN to 1/8in NPT Oil Restrictor Fitting KitSKU: 10289 UPC: 690092137465 Vibrant 4AN to 1 8in NPT Oil Restrictor Fitting Kit This Vibrant Performance kit converts 4AN oil lines to 1 8in NPT ports for precise oil delivery to turbos in any performance vehicle. It includes two brass jets to adjust flow rates limiting excess oil that can damage turbo seals. Ideal for custom turbo setups on street or race cars. Key Features 6061 Aluminum Construction: Lightweight durable body resists corrosion

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Installed on a 2.0 liter Subaru Impreza. I drive up/down the I5 in california 3-4 times a year. For those that don't know there is about a 200 mile flat stretch where everyone runs at 75-85mph. With various filters (FRAM, BOSCH, Subaru OEM), I would consistently get 29.8 mpg. Once I installed the K&N, I could feel the car pulling with a bit more power, but I noticed that I was getting about 27.5 mpg. Totally worth it as the impreza is a little under powered and I don't drive many miles (6k/year) but if you are putting a lot of miles on your car, you may want to have more mpg.

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Reviewed in the United States on May 24, 2026

Verified Purchase

GregUPerkio

Grantham, US

★★★★★ 5

fits my 2013 chevy suburban 5.3 and appears to be high quality

Size: (Pack of 1)

fits my 2013 suburban perfectly. looks to be a well constructed unit.

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Reviewed in the United States on March 29, 2026

Verified Purchase

Gahvno

Chelsea, US

★★★★★ 5

Very good quality comparable to OEM at a much more reasonable price point.

Size: (Pack of 1)

Last December we bought our first new car in 21 years and the first thing I did is stock up on cabin and engine air filters. I've got nothing against dealership OEM parts and pieces but what I do have an issue with is the prices. Luckily, we all have a bit of control over access to OEM quality parts and pieces at significantly more reasonable prices via Amazon. This filter and it's matching cabin filter are excellent in value and take less than 5 minutes to replace. Compare that to paying the hourly rate at your dealer plus the dealership retail price and you'll do what I did and stock up on these two filters. Definitely recommended.

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Reviewed in the United States on September 25, 2025