Baffled Oil Catch Can Audi S4/S5 B9 2018+
SKU: 19317221352

Baffled Oil Catch Can Audi S4/S5 B9 2018+

Sale price$422.98 Regular price$469.98
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Description

Baffled Oil Catch Can Audi S4/S5 B9 2018+Give the 3. 0T TFSI powering your 2018+ Audi S4 or S5 the extra layer of defense that it needs with the Mishimoto Baffled Oil Catch Can. Volkswagen and Audi were on the front lines of the direct injection revolution, which means they were also one of the first to implement a means to protect against blow by gases. While the factory AOS system does filter out some oil and fuel vapors, the harmful contaminants still make their way to the intake valves.

Give the 3.0T TFSI powering your 2018+ Audi S4 or S5 the extra layer of defense that it needs with the Mishimoto Baffled Oil Catch Can. Volkswagen and Audi were on the front lines of the direct injection revolution, which means they were also one of the first to implement a means to protect against blow-by gases. While the factory AOS system does filter out some oil and fuel vapors, the harmful contaminants still make their way to the intake valves.

The Mishimoto Baffled Oil Catch Can for your 2018+ Audi S4/S5 installs in line with the PCV system right after the factory separator for immediate protection of the intake components. Our catch can features a patent pending 2-Port Compact Baffled Oil Catch Can with a 50-micron bronze filter and an internal baffle to better separate oil from the crankcase vapors. Our kit also includes a set of direct-fit hoses for a simple installation, including two Mishimoto One-Way Performance Check Valves to prevent your catch can from becoming pressurized. In order to simplify servicing, our kit includes a petcock drain kit so draining captured blow-by is a cinch. The Mishimoto 2018+ Audi B9 S4/S5 Baffled Oil Catch Can also includes the Mishimoto Lifetime Warranty for a worry-free installation.

Our catch cans are different from most air-oil-separator (AOS) systems on a few levels. First, our catch cans are not heated. This means that all of the blow-by is able to condense in the can, including low-octane oil vapors and contaminated fuel vapors. Most AOS systems also drain the blow-by back into the oil pan, while our catch cans trap the blow-by and keep it out of the engine permanently. If you’ve seen what we’ve seen in the bottom of our catch cans, you won’t want that draining back into your oil either.

  • Direct fit for the 2018+ Audi B9 S4/S5
  • Single can mounts in line with the PCV system to separate oil from air using a 50-micron bronze filter
  • Helps reduce carbon buildup on intake valves
  • Patent pending billet 6061 aluminium can sealed with Viton™ O-rings
  • Installs in under 30 minutes
  • Mishimoto petcock drain kit included for easy servicing
  • Pre-molded hoses include Mishimoto Performance One-Way Check Valves to prevent pressurizing catch can
  • Factory quick-disconnects installed on hoses for simple installation
  • Defends intake system and essential components from oil blow-by
  • CNC-machined aluminium barbed fittings ensure a sturdy connection between lines and can
  • Catch can has a 3 oz. capacity for longer servicing intervals
  • Internal air diverter increases air turbulence to improve oil separation
  • Helps maintain proper octane levels to reduce potential detonation
  • Filter and can are fully serviceable
  • Mishimoto Lifetime Warranty
  • Overall Height: 96.52mm
  • Overall Diameter: 63.5mm
  • Inlet: 3/4"
  • Outlet: 3/4"
  • Drain Plug Thread Size: 3/8" NPT
  • Capacity: 88.7ml
  • Engine Codes: 3.0 TFSI
  • Chassis Codes: B9
  • Baffled: True
  • Install Torque Specs: 22 in-lbs (2.5N*M) recommended for all worm-gear clamps. These clamps have an operating range of 18-27 in-lbs 2-3N*M. Do not exceed the maximum torque rating of 27 in-lbs (3N*M).
  • Note: After installation, Mishimoto recommends checking the contents of the baffled catch cans every 1,000 miles until a baseline is established. Oil blow-by accumulation will vary with ambient temperatures and driving conditions. It is important that the contents of the can do not rise above the internal baffle. May not be a direct fit with some S/C applications.
  • (1) Compact Baffled Oil Catch Can
  • (1) Application-Specific Mounting Bracket
  • (2) Mishimoto Performance One-Way Check Valves 
  • (2) Direct-Fit Hoses with Pre-Installed Factory Quick-Disconnects 
  • (2) 3/4" Aluminium Barbed Fittings 
  • (1) Petcock Drain Kit
  • (2) Worm Gear Clamps 
  • Mounting Hardware 
  • Mishimoto Lifetime Warranty
  • 2018+ Audi S4
  • 2018+ Audi S5
          Shipping Notes
          • Free Standard Shipping on $100+ Orders to the USA.
          • Except Preorder products are shipped in 48 hours.
          • Delivery to the USA:
          1. Standard Shipping : 3-10 business days
          • If time is of the essence, please consider selecting expedited delivery for faster service.
          Exchange/Return Notes
          • We offer a 30-day return/exchange service after receiving.
          • Final sale items are not eligible for returns or exchanges.
          • To process your return/exchange, please contact us at [email protected]
          • Please click here for more details>>> Return & Exchange Policy
          SKU: 19317221352

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          4.6 ★★★★★
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          Chris snyder
          Louisville, US
          ★★★★★ 3
          Nice looking. Not very sturdy. Easy to install.
          Size: 40x7 2Pcs, Color: White, Size: 40x7 2Pcs, Color: White
          Update: The shelf slopes at about a 45° angle when you put anything more than about a pound on the outside edge of it. Perfectly fine up against the wall. Just seems like the braces inside aren't long enough to really give the stability needed. Bracket is nice and tight against the wall. Had to add braces underneath to hold a small plant, a photo and a small container. Wa sloping more and more each week The shelves look great and we're pretty easy to install. They have a single bracket that is very easy to mount to the wall and get nice and level.. The downside is that the bracket isn't long enough to go between studs. This seems like a pretty simple oversight. I mean why wouldn't you make it long enough to go stud to stud? Secondly and maybe more fatally the bars that go inside the shelf to support them coming out from the wall are significantly shorter than the depth of the shelf. Unfortunately this means the shelf is only supported the first few inches coming out from the wall so there is the potential for a slight lean forward.. The anchors they send are trash. Cheap soft plastic that just tears and bends with a screwdriver. I would suggest spending $2 and grabbing your own anchors from Ace or home Depot. The shelves are essentially made of a high grade cardboard kind of wood. They are not going to support much weight or last for years and years however there incredibly affordable and look nice and easy to install. Long as your expectations are right you'll be happy.
          WAS THIS REVIEW HELPFUL?YesReportShare
          Reviewed in the United States on October 23, 2023
          J
          Verified Purchase
          Janice Amidon
          Cuba, US
          ★★★★★ 5
          Great product.
          Size: 24x6 2Pcs, Color: Black
          Very good sturdy item
          WAS THIS REVIEW HELPFUL?YesReportShare
          Reviewed in the United States on June 1, 2026
          C
          Verified Purchase
          Chris
          Bozeman, US
          ★★★★★ 5
          Looks Great with a Couple of Modifications
          Turned out nice. I would say for the price, it's great quality and took about 45 mins to assemble, but I was also taking my time and using a screw gun. I wouldn't assemble everything by hand. Maybe to get the machined screws started by hand but everything else use a screw gun or drill. 1 thing to look out for: The light strip has a piece of it's stickers that is longer on the one end. I think that's so you can move the light strip over and then the end with the cord on it can be routed threw the top of the wooden side panel, then down on the outside of the shelf. As you can see in my video, I had to route it down on the inside of the shelf because the part that connects the power cord to the led strip landed right where 2 wood panels need to be screwed together. This might seem confusing in this review, but lay down the light strip 1st and then you might understand what I mean. The way mine turned out is still OK, but as you can see the power button control has to be mounted on the inside and you'll see it. Not a big deal for me, but that's not the way I wanted it to begin with. Also, I hated that the cord was white. I just put a couple coats of black spray paint and it looks a lot better.
          WAS THIS REVIEW HELPFUL?YesReportShare
          Reviewed in the United States on September 24, 2025
          B
          Verified Purchase
          Billy Avina
          Fort Morgan, US
          ★★★★★ 5
          Just get it don't hesitate
          Size: 8.6"D x 23.6"W x 33.8"H, Color: Black
          It's really nice and bold looking
          WAS THIS REVIEW HELPFUL?YesReportShare
          Reviewed in the United States on April 25, 2026
          C
          Verified Purchase
          C.Ray
          Charlottesville, US
          ★★★★★ 5
          Excellent value.
          The instructions were pretty easy to follow. I appreciate that there was an extra screw of each size provided, just in case. I wish there had been clearer indications on how to handle the cord or the included light. I ran it down the inside and mounted the switch on the inside of the display shelf. I bought the white variant; however, beacause I am not fond of black furniture and tend towards bright colors, I used blue spray paint to cover the black metal and make the piece better fit my decor. A white with white option would have been ideal, but now I have a unique piece so it all works out. The value for the price is excellent. It is a large, sturdy piece that should prove functional for years to come. I am considering purchasing a second one for my husband's gaming space.
          WAS THIS REVIEW HELPFUL?YesReportShare
          Reviewed in the United States on August 23, 2025

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