GrimmSpeed 2015+ Subaru WRX Equal Length Exhaust Header

Regular price $899.00 USD Sale price $899.00 USD Regular price $895.00 USD
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SKU: grm113008
Product Description

After isolating the inadequacies of the OEM exhaust manifold, GrimmSpeed was able to create a replacement that’s leagues above: introducing the all-new GrimmSpeed 2015–2021 WRX Equal Length Header. The result of the company's hard work is one of the best looking, performing, and most durable header options in the Subaru aftermarket. The exhaust runners are CNC-bent and trimmed as a single piece with no additional welds to introduce points of failure or junctions that would interrupt flow, resulting in a truly equal-length header with almost no variance in runner bend angle. This is especially important for maximizing the performance of the 2015–2021 FA WRX twin-scroll configuration.

GrimmSpeed's unique low restriction cast collector allows for the perfect runner spacing and angles necessary to obtain the equal bends and lengths of all the tubes. This is a major part of the GrimmSpeed Header’s ability to fit between the stock skid plate and the oil pan, while still providing the ideal performance from the rest of the design. The collector allows for a more smooth and consistent flow compared to a welded variant which can have flow interruption or structural failure.


  • Full 304 Stainless Steel Construction – Flanges, tubing, collector, and badge
  • True Equal Length Runners – CNC bent and trimmed, less than 1% variance in length
  • Innovative Cast Merge Collector for low restriction, smooth flow, and consistent performance
  • Smooth, Restriction-Free Flow Throughout
  • Thick 1/2in CNC Cut Flanges and 14ga Tubing for added durability and longevity
  • No Tune Required
  • No Ground Clearance Loss
  • Custom J-Pipe/Turbo Bracket Included 
  • Gaskets and Hardware Included
  • Manufactured and Welded in The USA


  • 2015–2021 Subaru WRX

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

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