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IAG Stage 5 2015-20 WRX AW20 Ported Cylinder Head Package (Cams / Rockers / Lash Caps Sold Separately)

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IAG Stage 5 2015-20 WRX AW20 Ported Cylinder Head Package (Cams / Rockers / Lash Caps Sold Separately)

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$5,799.99
SKU:
IAG-ENG-3050AW
Availability:
Built In The Order Received
Proposition 65:
P65 WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov.
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IAG Stage 5 2015-20 WRX AW20 Ported Cylinder Head Package (Cams / Rockers / Lash Caps Sold Separately)

$5,799.99

IAG's Stage 5 Cylinder Head Package utilizes a CNC porting program for the AW20 heads that was developed over the past five years and tested on the most successful, high-horsepower, Subarus. The ported head package starts with brand new AW20 FA20 WRX DIT OEM head castings, directly from Subaru of America. The bare castings are visually inspected, and the oem guides are pressed out. Next, the heads are fixtured into our in-house Centroid 5-axis CNC Machine, one of the most advanced pieces of precision engine machining equipment in the world. The Centroid CNC ports the intake and hard-to-reach exhaust "dog-leg" port runner. The benefit of CNC porting is, not only an efficient way of machining the heads, but it also offers consistent port results, which are hard to achieve by hand. Once the Centroid completes the porting process the heads are drilled to fit larger 1/2" or 14 mm head studs, which are commonly used in high horsepower builds. Following the drilling process, the OEM press-fit freeze plugs are removed to avoid a common known failure, in which they loosen and leak coolant into the engine oil, as well as externally. To eliminate this problem, each head is tapped and threaded plugs are installed. To improve airflow specially shaped GSC Manganese-Bronze valve guides that are pressed into place. Once all of the new intake and exhaust guides are installed they are diamond-honed in our honing station. The heads are then fixtured in our Serdi 3.0 Valve Guide and Seat Machine to cut all intake and exhaust seats with a multi-angle valve job that suits the flow characteristics of Ferrea Comp Plus +1mm valves. The cylinder heads' decks are resurfaced using our TS-3000 BlockMate, which cuts the aluminum to a smooth, even finish. To remove debris and oils from the machining process, the heads are then ultrasonically cleaned. Finally, the heads are reassembled using Ferrea Dual Valve Springs and Titanium Retainers along with GSC intake and exhaust valve stem seals.


Stage 5 Ported Head Package Includes:

  • (x2) Brand New Subaru OEM AW20 Cylinder Head Castings
  • (x8) Ferrea 35mm (+1mm) Comp Plus Intake Valves
  • (x8) Ferrea 30mm (+1mm) Comp Plus Exhaust Valves
  • (x16) Ferrea Dual Valve Springs, Locators & Titanium Retainers
  • (x16) GSC Manganese-Bronze Valve Guides
  • (x8) GSC Valve Stem Seals
  • (x8) GSC Exhaust Valve Stem Seals
  • Threaded Coolant Plug Upgrade
  • IAG Performance CNC Porting
  • Multi-Angle Valve Job
  • Drilling for compatibility with ½" or 14mm Head Stud
  • Resurface
  • Ultrasonic Cleaning


Recommendations / Warranty:

  • Assembly and professional installation recommended.
  • Workmanship/parts warranty will only be available for professionally installed cylinder heads.





Model Year & Fitment


  • 2015 Subaru WRX
  • 2016 Subaru WRX
  • 2017 Subaru WRX
  • 2018 Subaru WRX
  • 2019 Subaru WRX
  • 2020 Subaru WRX

*Assembly and professional installation recommended. Workmanship/parts warranty will only be available for professionally installed cylinder heads.

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SHIPPING

FREE SHIPPING on orders of $250 or more* Simply look for the logo to enjoy free shipping on selected items throughout the store. Oversized packages and freight shipments do not qualify for free shipping. If the items in your order which qualify for 'Free Shipping' total $250 or more, your order ships FREE! Free shipping is only available to the continental United States also referred to as the “lower 48 states”.

Shipping Policy: All products sold on the shopping cart are shipped by UPS or USPS. All packages include shipping insurance in case they are lost or damaged. USPS requires signature confirmation on all insured orders over $200.00. USPS shipping times are estimated and not guaranteed. UPS tracking numbers are automatically generated when a package ships and the number is sent to the email address you provided. If a package contents is damaged during shipping please notify the shipping driver and file a claim with the shipper. You have 14 days to inspect your shipment and contents. After that period of time, IAG is no longer responsible for missing items. You have 30 days to report any damaged or incorrect items, after that period of time IAG is no longer responsible for returns or exchanges. You can contact us by Email or call 410-840-3555 for assistance. *International orders are subject to customs charges, duties or fees. Please check with your local customs office before ordering. IAG is not responsible for international customs charges, duties or brokerage fees.

Drop Shipping: Some items require drop shipping to complete an order. These products are shipped from manufacturer or distributor warehouses across the country. In some cases, this may speed up delivery time. In other cases, it could add 1-3 days to the delivery time. If you have a question regarding an order please contact our sales desk at 410-840-3555.

Order Processing: Orders placed after 3PM EST may not be processed the same day. Order processing may take 24-48 hours. USPS orders placed after 10am EST will ship the following business day if the items are in stock

RETURNS

How do I return an item?

You have 14 days to inspect your shipment and contents. After that period, IAG is no longer responsible for missing items. You have 30 days to report any damaged or incorrect items, after that period IAG is no longer responsible for returns or exchanges. All stocking products are subject to a 30 Day return policy. The item(s), when approved for return, are subject to a 20 percent restocking fee. Canceled orders may be subject to a 20 percent cancellation fee. All product returns require a return authorization number before being shipped back to IAG or the manufacturer. An “RMA” number is obtained by calling the IAG Support Desk at 410-840-3555 or emailing support@iagperformance.com. Some products may require shipping back to the manufacturer for inspection before a return or exchange may be processed. Some products may not be able to be returned. Products that have been modified or installed are not eligible for return. There are no returns or cancellations for Special Order/Made to Order items and Electrical Components (including the COBB Accessport). Items returned after the 30 Day return period without an RMA will be refused. Canceled service appointments with deposits are non-refundable.

Refunds take 30 days or less. Payments made by Credit Card or PayPal are returned back to the original account used during the transaction. There are no cash returns; we will issue a business check for the return of funds. Refunds are decided by the management and not by sales staff. Canceled service appointments with deposits are non-refundable.

IAG Performance Product Warranty (Excluding - Short Blocks / Long Blocks)

This limited warranty gives you specific legal rights and you may also have other rights, which vary from state to state. We limit the duration and remedies of all implied warranties, including, without limitation, the warranties of merchantability and fitness for a particular purpose to the duration of this express limited warranty. Some states do not allow limitations on how long an implied warranty lasts. The remedies described below are your sole and exclusive remedies and our entire liability for any breach of this limited warranty. Our liability shall under no circumstances exceed the actual amount paid by you for the product, nor shall we under any circumstances be liable for any consequential, incidental, special or punitive damages or losses, whether direct or indirect.

This warranty covers defects in materials and workmanship of your IAG Performance Product for 12 Months or 12,000 Miles from the date of receipt.

IAG will repair any IAG Manufactured Product that proves to be defective in materials or workmanship within the warranty period. If a repair is not possible, we will either replace your Product with a new Product of similar composition and price, or refund the full purchase price of your Product, at our sole discretion. There is no charge for inspection but the buyer is responsible for shipping charges.

IAG Performance Engine Warranty

For more information concerning our engine warranty please visit IAG Performance Engine Warranty Page

Other Manufacturer Products:

Products not manufactured by IAG are subject to the individual manufacturer warranties which may apply. If you have questions concerning the fitment, appearance, or performance of your item, please contact a member of our customer support team for assistance.

Our customer service team is happy to assist you with the products purchased from IAG Performance. Our support associates can help you with installation support, troubleshooting advice, and help to identify possible manufacturer defects.

For products that are found to have defects, our support department can provide the contact information for the manufacturer to arrange a warranty inspection and, if applicable, any necessary repairs or replacement shipments.

You may also contact the manufacturer directly for information regarding product eligibility and specific terms and conditions of warranty coverage.

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