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IAG Timing Belt Kit with IAG Red Racing Belt, Timing Guide, Idlers & Tensioner for 02-14 WRX, 04-21 STI, 05-12 LGT, 04-13 FXT

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IAG Performance

IAG Timing Belt Kit with IAG Red Racing Belt, Timing Guide, Idlers & Tensioner for 02-14 WRX, 04-21 STI, 05-12 LGT, 04-13 FXT


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  • Subaru FHI Timing Belt Small Idler Pulley Bolt
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IAG Timing Belt Kit with IAG Red Racing Belt, Timing Guide, Idlers & Tensioner for 02-14 WRX, 04-21 STI

IAG Timing Belt Kit with IAG Red Racing Belt, Timing Guide, Idlers & Tensioner for 02-14 WRX, 04-21 STI, 05-12 LGT, 04-13 FXT


IAG Timing Belt Kit with IAG Red Racing Belt, Timing Guide, Idlers & Tensioner for 02-14 WRX, 04-21 STI, 05-12 LGT, 04-13 FXT

  • Subaru FHI Timing Belt Small Idler Pulley Bolt



The IAG Red Racing Timing Belt Kit is designed as a replacement for the OEM Subaru EJ20 and EJ25 engines. Included in the kit are high quality OEM idler pulleys, IAG's high strength red racing timing belt, our billet timing belt guide, and an OEM timing belt tensioner.

The included components are designed for long life and high performance. These kits function as an exact replacement for the OEM timing belt found on the 2002-2014 Subaru WRX, 2004-2021 Subaru STI, 2005-2012 Legacy GT, and 2004-2013 Forester XT.


The IAG Performance Red Racing Timing Belt is designed to work with all Subaru EJ series engines. The high-strength Kevlar construction and attractive red color make it a great choice for your Subaru engine bay. We have performed extensive testing of this belt on our Spintron testing machine, as well as our fleet of racing vehicles. In testing, we found that these belts ensure accurate timing and unmatched performance.

IAG Red Racing belts are lightweight and utilize EPDM Rubber for increased durability and performance in all climates. The Kevlar construction is 300% stronger than the OEM Subaru timing belt, and is also three times more heat resistant. The belt teeth are made of H-NBR grade rubber for additional strength.


One of the most important components in the Subaru timing system is the timing belt tensioner. Aftermarket units are known to fail prematurely, which can cause catastrophic failure. The IAG Timing Belt Kit includes an OEM original equipment tensioner assembly direct from Fuji Heavy Industries (Subaru's parent company.)

The idler pulleys included in the kit are also OEM quality units. On Subarus it is more common to experience a timing idler bearing failure than it is to experience a failure of the timing belt iteself. You can rest assured that these high quality components will provide a long, trouble-free life.


The IAG Performance billet timing belt guide is the best method to prevent your EJ engine from skipping a beat. Engineered and manufactured in our facility in Westminster, MD, each guide is machined from a single piece of 6061 billet aluminum and then anodized black for a protective finish. The guide is a strong, rigid replacement for the OEM piece and is also adjustable to set the proper clearance for the timing belt. This adjustability is especially useful when switching to an aftermarket timing belt where belt thickness may vary. The edges of the guide feature a soft corner that prevents wear on the flat side of the belt.

What's Inside:

IAG Red Racing Timing Belt Kit Includes:

  • IAG Red Racing Timing Belt (x1)
  • IAG Billet CNC Machined Timing Belt Guide (x1)
  • OEM Smooth Idler Pulley (x2)
  • OEM FHI Timing Belt Tensioner Assembly (x1)
  • OEM FHI Timing Belt COG (x1)
  • OEM FHI Small Roller (x1)

Installation Instructions:

Please refer to the OEM Subaru Timing Belt Installation procedure for installation.


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


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 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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