GrimmSpeed 08-14 Subaru WRX / 08-17 Subaru STi / 09-13 Subaru Forester XT Radiator Hose Kit - Black (grm405322)

Regular price $110.00 USD Sale price $110.00 USD Regular price $110.00 USD
In Stock!
SKU: grm405322
Product Description

The weakest component of your Subaru's cooling system is usually the old, dry-rotted OEM coolant hoses. A system is only as good as its weakest link. Cracks may appear as your Subaru ages and the hoses' integrity deteriorates, leaving you stranded on the side of the road or at the racetrack. Ensuring that your radiator hoses are suitable for the job is crucial for maintaining the dependability of any automobile, be it a daily driver or one with a high horsepower build. In addition to normal operating conditions, they must be able to withstand the elevated temperatures and pressures of an engineered motor without deforming, leaking, or blowing up completely. Herein lies the role of GrimmSpeed. GrimmSpeed has always been known for producing parts of the highest caliber and durability, no matter what you throw at them. Regarding the recently released GrimmSpeed Silicone Radiator Hoses, nothing has changed.

With fiber reinforcement sandwiched between each layer of silicone, these hoses are made with a 5-ply construction technology to guarantee their longevity and shape throughout the life of the car. GrimmSpeed Silicone Radiator Hose Kits eliminate the need for trimming or kinking by precisely fitting and installing brand-new factory hoses through reverse engineering. The kits are available for a range of Subaru applications and come in two colors: red and black. Each kit has the GrimmSpeed trademark implanted into it. An upper hose, a lower hose, and four BREEZE stainless steel high-torque clamps are included with each package. We take pride in our products and the name that stands behind them, so as with all of the parts we manufacture, these units come with a Lifetime Warranty and will be the last set of radiator hoses you’ll have to buy.


  • 2008-14 Subaru WRX
  • 2008-21 Subaru STI
  • 2009-13 Subaru Forester XT
  • 2009-10 Subaru Forester
  • 2008-11 Subaru Impreza
  • 2005-09 Subaru Legacy GT
  • 2005-09 Subaru Outback XT


  • 5-ply silicone construction
  • 3D scanned for a perfect fit
  • High-quality replacement clamps included
  • Lifetime Warranty

To provide faster delivery and turn around time; Kami Speed ships products out from different warehouses throughout the United States. Usually averaging 1-4 business days for processing prior to shipping.

Depending on the package, we ship using different carriers according to the item's location, content, and size.

Freight truck & international items, will require up to 7 business days to ship due to size and logistics.

All orders made after 3:00pm ET will be shipped or processed the next business day.

Unless otherwise noted as "In Stock" or exact ETA. Special Order items have an ETA of 5+ weeks.

Orders over $500 will ship insured and over $1,000 with signature and insurance in order to guarantee delivery. Orders over $1000 may not be able to ship to a different address not listed as the billing address or confirm payment address from the form of payment used. Orders with suite numbers, different billing, or apartment numbers will require signature if valued over $100.

All international orders outside of the USA are subject to duties and taxes fees per your countries jurisdiction and determined by customs.
Kami Speed serves the right to ship using an alternative method if we see it fit, in order to expedite shipping and reduce your rate depending on product value.

Processing and logistics on in stock international orders can take up to 7 business days to process & ship.

In stock, non special order items can be returned within 30 days of the product arriving to your house or place of work.
Returns will NOT be accepted on Clearance Items, Final Sales, Special Orders, Opened, Installed, Incomplete, or Otherwise Used Products. In order to initiate a return, an RMA number must be requested and approved via e-mail. All returns will be subject to a 20% restocking fee minus complete shipping cost (roundtrip).

Any processed orders that have not shipped will incur a 6% cancelation refund fee unless the product was not available to ship within a timely manner. No fee will be incurred if used as store credit.

For complete details on our return policy, please see our Help and FAQ link under HELPFUL INFO.

WARNING: Operating, servicing and maintaining a passenger vehicle or off-highway motor vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to

Customer Reviews

Be the first to write a review