For Equal Length Header For Subaru FA 15-21 WRX GrimmSpeed

Description: For Equal Length Header For Subaru FA 15-21 WRX GrimmSpeed SKU: 113008-JBCB Brand: GrimmSpeed Condition: New MPN: 113008 Manufacturer: GrimmSpeed Material: 304 Stainless Steel Manufacturer Warranty: Limited Lifetime The Highest Quality, Built to Last! Over the years, GrimmSpeed has proven that our exhaust products are some of the highest-quality and best-performing in the industry because of the detail oriented approached that we put into their development. When it comes to improving on an OEM Design, this attention to detail and overall exhaust knowledge allows us to identify aspects of the factory parts that can be greatly improved upon. One of the first things to Note about the OE exhaust manifold are the several points where flow is decreased due to a neckdown in piping diameter. These disruptions in exhaust flow result in decreased turbine efficiency which ultimately limits boost and power production. Furthermore, the OE merge collectors are made specifically with ease of manufacturing in mind and the result is a compromise on performance. The collectors contain very odd shapes that are bad for smooth exhaust flow and have several diameter restrictions that make them one of the biggest weaknesses of the stock manifold. Finally, the angle of the exhaust flow merge is also Not ideal, causing the exhaust pulses to fight each other, which can add to flow differences for the twin scroll turbine, sacrificing spool and performance. After isolating the inadequacies of the OEM exhaust manifold, we were able to start identifying key areas of improvement: correctly sized and consistent exhaust runners that are more equal length, a consistent and non-bottlenecking merge collector inlet and outlet and a higher angle merge collector to direct flow into the turbine and prevent opposing flow disruptions. Beyond that, we decided on using thicker tubing and flanges for increased Durability and longevity to more-effectively support the overhanging turbocharger. All four of our exhaust runners are Designed in conjunction with the merge collector to equal out the lengths as well as the overall bend angles. This is especially important in the FA WRX twin scroll turbine configuration because it makes the strength of each pulse, or push on the turbine wheel, at equal timing and consistency. Since the exhaust runners are CNC bent and trimmed as a single piece there are no additional welds to introduce points of failure or junctions that would interrupt flow, resulting an in impressive difference of less than 1 Percent in total length. In addition, maximum variance is only 5 degrees from the Most bent to the least bent runner, this mean we were able to produce what is a truly equal length, and equal bend manifold. The collector being cast, allows for the runner spacing and angles necessary to obtain the equal bends and lengths of all the tubes. This part is a major player in the GrimmSpeed manifold'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 cast collector also allows for more smooth and consistent flow in the interior compared to a welded variant. This greatly simplifies the overall Design, removing five more welded junctions, which could be a point for flow interruption or the structural failure that we see with other headers. The head flanges of our header are CNC cut and faced from a 1/2in thick piece of 304 Stainless Steel. This Design is much thicker than OEM to increase reliability and longevity, as well as to provide additional material to be removed after welding to ensure flatness from flange to flange. This additional measure allows for greater gasket sealing which results in increased performance. The final touch is that the exhaust runners are welded inside the flange as well as outside, this is an extra step in manufacturing, but it provides a rounded lip to improve flow from the flange through the runner. All of these things come together to make The GrimmSpeed 15-21 WRX Header Not only the prettiest on the market, but also among the Best performing and durable pieces you can purchase. Quick Notes:Full 304 Stainless Steel Construction Flanges, tubing, collector and badgeTrue Equal Length Runners CNC bent and trimmed, less than 1 Percent variance from the longest to the shortestInnovative Cast Merge Collector Low restriction inlet and outlet, smooth flow and consistent performanceSmooth, Restriction-Free Flow Throughout Single piece mandrel bent tubing welded to a single piece merge collector removes unwanted stepsThick 1/2in CNC Cut Flanges and 14ga Tubing Added Durability and longevityNo Tune required Safe to run, just bolt onNo Ground Clearance Loss Clears factory skid plate without using spacersJ-Pipe/Turbo Bracket Included Retain the support that other aftermarket header loseGaskets and Hardware Included Everything you need to get Installed and on the roadManufactured and Welded In The USA For consistency and top quality control Fitment:15-21 Subaru WRX ABOUT With over 20+ years of experience in the automotive industry and in business since 2004, we strive to provide you with the best products and customer service. Our strong relationship with manufacturers and suppliers allows us to get you the parts you want fast and at the best prices possible. To contact us with questions/comments, please e-mail us using the "Contact seller" link. Most e-mails are answered within 24 hours, including weekends and holidays. PAYMENTS Click the Buy it Now button to purchase and immediately proceed with our checkout and payment process. We require immediate payment with PayPal. SHIPPING ALL PRODUCTS ARE IN STOCK AND READY TO SHIP! Orders will ship the same day or the following business day. FREE standard shipping within the contiguous United States. Any address outside of the contiguous United States, please contact us for a shipping quote. Processing begins as soon as an order has been placed, therefore we cannot change, cancel or modify orders once they have been confirmed. Once your order ships, please allow an additional 1-5 business days for delivery. Tracking information will be provided to you within 24 hours of shipping out. Because our products ship from warehouses and manufacturers across the US, exact shipping method and times will vary by item. To return any unwanted items, please review our return policy for return and exchange instructions. RETURNS We allow returns of any item, in new and unused condition with original packaging, within 30-days of receiving the item for a refund or exchange. Absolutely NO returns or exchanges allowed on products that have been used, installed, mounted, or missing components. All returns must be accompanied by a Return Merchandise Authorization (RMA) number which can be obtained by contacting us. Any products returned without a Return Merchandise Authorization (RMA) number will be refused. Please contact us in the event you're not satisfied with your purchase as we are more than happy to work with you to ensure a positive experience.

Price: 899 USD

Location: San Leandro, California

End Time: 2025-02-04T18:33:03.000Z

Shipping Cost: N/A USD