Radium Engineering - Air Oil Separator Kit (AOS-R)- 08-14 Subaru WRX, 08-21 STI, & 09-13 Forester XT
High-powered modified Subaru engines tend to generate excessive blow-by oil and gasses. In these cases, an ordinary small catch can may quickly fill with oil and not be adequate. Like the Radium Engineering Subaru Dual Catch Can Kit, the AOS (Air Oil Separator) kit is responsible for keeping blow-by oil and other pollutants out of the intake pipe, manifold, turbocharger, and intercooler during all engine loads. The main difference is that an AOS-"R" system "returns" what is collected back into the oil pan so there is no servicing required. The built-in heater keeps water from condensing in the AOS. And because water is more dense than oil, there is an integrated water trap found around the bottom perimeter of the can.
This prevents water from descending into the oil pan if ever present. Furthermore, because the water is trapped against the heater, it will eventually boil and evaporate out of the system. The AOS is constructed of three CNC machined sections that screw together and are sealed with O-rings.
AOS Height: 6.94" (top of dipstick to bottom of AOS)
AOS Diameter: 3.45" Round
AOS Capacity: 20.3 oz (600mL)
-Effectively raises the octane and increases engine performance with cleaner inlet air
-Prevents oil buildup in the intake or intercooler system walls, throttle body, intake manifold, etc.
-Lowers hydrocarbon emissions
What is included?
-Machined alumium Radium Engineering Air Oil Separator
-Subaru specifically designed mounting bracket
-All necessary SAE J30R7 rated PCV/Emissions hose
-Coolant hoses and fittings
-All necessary aluminum fittings and hose-ends
-Stainless steel mounting hardware
09-13 Subaru Forester XT
08-14 Subaru Impreza WRX
08-14 Subaru Impreza WRX STi
15-21 Subaru WRX STi
*For 02-05 Subarus with a cable-actuated throttle body, our Cruise Control Relocation Bracket must be used.
*If operated in freezing environments, Radium Engineering recommends installing insulation sleeving (not included) over any hose exposed to cold air flow. This will help prevent the natural phenomenon of water condensation freezing and potentially clogging the hose.
*For RHD vehicles, our Universal AOS-R must be used for custom mounting and plumbing.
*The Radium AOS-R kit may not be compatible with all other aftermarket products.
Our team at Bleeding Tarmac is working hard to offer you the best prices and the lowest shipping cost. Because we are offering products at MAP, we unfortunately have to charge shipping fees on some items.
Honesty is the best policy - Let's be honest, shipping is not easy and can be pricy. Here at Bleeding Tarmac, we will not hide shipping cost in sale prices. Our automated check out service provides the best estimate, but don't be shy and contact us to get the lowest shipping quote possible.
If you have specific shipping needs, please contact us before ordering.
Oversized, overweight and/or special items may require additional shipping fees and include, but are not limited to : rollcage kits, batteries, seats, tires and wheels. You will be contacted with the actual shipping charges before your order is processed.
Where do we ship?
We ship to Alaska, Hawaii, and Canada. Please contact us to get a shipping quote.
International customers are responsible for all duties, fees, and taxes associated with their shipments.
All regular items usually ship within 1 to 10 business days.
To accelerate the shipping process, parts will be shipped from remote warehouses located throughout the United States. Orders may ship in multiple boxes and/or from multiple carriers.
Special orders or out of stock items may take longer and we will inform the customer by email once we have a estimated delay.
Items are carefully packed and sealed to prevent damage in transit. Loss or damage claims must be taken up with the carrier. If a shipment is lost, mis-routed, or damaged we will start an investigation with the shipping carrier. Replacement items cannot be sent until the shipping carrier completes their investigation.
Fluids & Fire Suppression Systems
Shipping restrictions apply to all fluids and fire suppression systems. These items will only be shipped by ground.
ADDED Shipping fees might be required after ordering BRAID WHEELS.
Because of the container shortage and unreliable delays of maritime transport, we only drop ship wheels directly from the manufacture in Spain at the moment.
Shipping fees calculated at check out are ESTIMATED only.
Customer will be contacted after completing the order, BUT before we process payment, to confirm availability, shipping options, and rate.
** Return & Cancellation are usually impossible since most wheels are made to order. Cancellations are ONLY possible if made BEFORE the production begins. Please contact us to verify if anything is possible. **
Unless in stock, order lead time : 4 to 10 weeks
Longer lead times apply during the rebuild season.
Samsonas products are often customized for your car and are shipped from Europe, therefore lead times can vary and occasional delays can occur.
Please order with plenty of time in advance.
Cancellation fee 25%
All Rally Innovations products requires a signature on delivery.
In stock Items will be shipped within 5 business days. Customer will be contacted if shipping delay is expected to be longer.
Cancellations may be allowed under certain conditions. Once the order has been packaged and a tracking number has been created a cancellation will not be allowed. Special order items cannot be canceled at anytime once the order is processed.
If you refuse or return your delivery, the buyer will be responsible for the original shipping charges. Exchanged items will be charged shipping fees.
Our team is here to assist you in your purchase. Please take advantage of our knowledge before you order.
Within 30 days from the receipt of you order, certain items can be approved for return if unused, uninstalled, undamaged, and in the original packaging. Items must include all hardware, instructions, tags, or other original included accessories.
All returned items must be approved and issued an RMA number (returned merchandise authorization). No credit will be issued without a RMA number.
Items must be properly packaged for shipping. We reserve the right to charge a restocking fee or decline issuance of credit for damaged retail packaging. Customer is responsible for return shipping fees.
Please use a trackable service for you return such as UPS, FedEx, or certain USPS services. Return shipments should be insured for the proper amount. Bleeding Tarmac will not be held responsible for returns that are lost or damaged in shipping.
Once the item is received and inspected, a credit will be issued. Refunds may take 3-5 business days to post on your account.
All refunds are subject to a processing and/or restocking fee.
No returns on the following: Special order items, helmets, clothing articles, items considered clearance or close-outs, or items with special pricing, are final sale and may not be returned.
Apparel and promotional items
All apparel and promotional items, including hats, t-shirts, sweatshirts, stickers... are final sales. No returns, exchanges, or refunds will be issued on these items.
We offer no warranty above that of the manufacturer of goods sold. In an effort to minimize legalese we offer the following statement. Each brake parts manufacturer warrants it's goods to be fit and free from defects in materials and workmanship. This is quite limiting. Any warranty above and beyond that is strictly on a case by case basis and limited to replacement of equal value only.
Coupon codes can only be redeemed at the time of purchase. Once an order is placed we will not price match any other competitors, all price matching must be negotiated before an order is placed.
We reserve the right to refuse any order for whatever reason, without being liable for any damage or costs.
Most products on our websites are designed for off-road use, and to be used at the purchaser’s own risk and discretion. Bleeding Tarmac, Broken Motorsports, or any of its companies are exempt from any liability, and will be held harmless for any damage incurred, either property damage or personal harm, by the use of any of these products, whether being used for off-road use, or for use on public roads. While some of these products may be legal for use on public roads, Bleeding Tarmac, Broken Motorsports, or any of its companies do not endorse, authorize, or sanction their use on such public roads.