CALL US (855) 998-8726 Skunk2 Racing Alpha Series Race Header (412-05-1930)
449.99449.991
Skunk2 Racing Alpha Series Race Header (412-05-1930)2.5in. Collector; 4-2-1 Tri-Y Design; No Cat Converter; 18mmx1.5 O2 Sensor Bung Thread Pitch; Incl. Adapter Flange/Donut Gasket/Hanger Mtg. Bracket
2.5in. Collector-4-2-1 Tri-Y Design-No Catalyst. Skunk2 is proud to announce its all-new Alpha Series Header for the '06-'11 Civic Si. Patterned after our already popular and dyno-proven MegaPower Headers, which have been used by leading, competitive race teams for years, Skunk2's Alpha Series Header employs many of the same design ...
Skunk2 Racing4.6666663Skunk2 Racing Alpha Series Race Header (412-05-193

Skunk2 Racing

Skunk2 Racing Alpha Series Race Header (412-05-1930)

2.5in. Collector; 4-2-1 Tri-Y Design; No Cat Converter; 18mmx1.5 O2 Sensor Bung Thread Pitch; Incl. Adapter Flange/Donut Gasket/Hanger Mtg. Bracket

$439.99

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Details
2.5in. Collector-4-2-1 Tri-Y Design-No Catalyst. Skunk2 is proud to announce its all-new Alpha Series Header for the '06-'11 Civic Si. Patterned after our already popular and dyno-proven MegaPower Headers, which have been used by leading, ...
  • Designed to maximize exhaust flow
  • Provide higher torque and increased horsepower
  • Able to maintain the highest speed of the exhaust gas ensuring better throttle response and mid-range power
  • Sequentially paired, equal-length, stepped primaries
  • The smallest primary tubes for optimized peak and overall power
  • Backed by a one-year warranty
  • For more questions about this product, please Contact Us
Description

2.5in. Collector-4-2-1 Tri-Y Design-No Catalyst. Skunk2 is proud to announce its all-new Alpha Series Header for the '06-'11 Civic Si. Patterned after our already popular and dyno-proven MegaPower Headers, which have been used by leading, competitive race teams for years, Skunk2's Alpha Series Header employs many of the same design characteristics and technology. Our decision to produce the Alpha Series Header was driven by our desire to make our race-proven design more affordable and accessible to everyday enthusiasts. New manufacturing techniques allow us to do so at a lower overall cost, making race-winning header technology available to everyone. Skunk2's Alpha Series Header for the eighth-generation Civic Si offers Skunk2 performance, industry-leading customer service, and a full warranty policy, all at a price comparable to lesser budget-minded headers. Unlike the budget-minded headers, though, only Skunk2 Alpha Series Headers ensure precise fitment and the peace of mind of knowing that a Skunk2 representative is just a phone call or email away. All Skunk2 Alpha headers are designed and engineered to maximize exhaust flow and increase both horsepower and torque throughout the powerband. The unique design is the result of more than a decade of racing experience coupled with computerized modeling and extensive dyno testing. Each Skunk2 Alpha Series Header features equal-length, sequentially paired, stepped primaries in a 4-2-1 tri-Y design that terminates with True Merged Collector with a 2.5-inch outlet. Skunk2's Alpha Header also include 02 bungs for OEM and aftermarket sensors. Each header is constructed from stainless steel with mandrel-bent tubing for strength, corrosion resistance, and durability. The Skunk2 Alpha D-Series header also includes a donut gasket and a weld on exhaust flange, this included flange can be utilized as an option to weld the Alpha Header to an aftermarket exhaust. These features, paired with Skunk2?s unique design specs, provide an extremely broad powerband that?s applicable to a wide range of engine sizes and configurations. Alpha Series Headers also feature specific sized primary tubes to achieve optimum overall and peak power. By sizing the primary tubes? diameter, Skunk2 is able to maintain the highest possible exhaust gas speed throughout the header, which improves mid-range power and throttle response significantly. Skunk2?s Alpha Series Header provides the perfect combination of top-end power without sacrificing mid-range performance or throttle response. The Alpha Header will pair up perfectly with the Kraftwerks D-Series Supercharger Kit., and has all the clearance needed for a great fit.

Features

  • Designed to maximize exhaust flow
  • Provide higher torque and increased horsepower
  • Able to maintain the highest speed of the exhaust gas ensuring better throttle response and mid-range power
  • Sequentially paired, equal-length, stepped primaries
  • The smallest primary tubes for optimized peak and overall power
  • Backed by a one-year warranty
California Proposition 65: This product can expose you to chemicals including Styrene, which is known to the State of California to cause cancer, and Bisphenol A which is known to the State of California to cause birth defects or other reproductive harm.
Application List
ImageSKU / Part NoApplicationDetailPriceAdd to Cart
412-05-1930 412-05-1930Honda Civic (2006) - Si2.0L L4 FI GAS | K20Z3 | Naturally Aspirated$439.99BUY
+ -
412-05-1930 412-05-1930Honda Civic (2007-2011) - Si2.0L L4 FI GAS | K20Z3 | Naturally Aspirated | Coupe$439.99BUY
+ -
Specifications
Application
Automotive
Collector Tube Size
2.500 in.
Engine Make/Size
Honda 2.0L
Material
Stainless Steel
Port Shape
Round
Tube Direction
N/A
Return Policy

At JM Auto Racing we make returns and other client services as easy as possible. Our mission is to provide you with the best products and the best service in the automotive industry. We understand that sometimes, clients change their minds about products that they order or simply do not need them anymore. We also know that clients are cautious about terms and conditions since they are often tricky and misleading. Our goal is to make the return or exchange process trustworthy and as simple as 1-2-3.

Returns & Exchanges
If you are not satisfied with your purchase for any reason, we will be happy to accept a return for a refund or exchange on products in new/unused condition within 30 days of delivery. For orders placed during the holiday season from November 15th to December 31st, the return period is extended to 60 days. The following rules apply:

  • All returns and exchanges must be made via our Return Procedure with a valid & signed RMA form.
  • Returns will have a flat 15% restocking fee.
  • Product(s) must be in new condition and in the original packaging (please do not assemble, install, or modify the product in any way). In the event of fitment, flaw or defect pictures may be necessary to complete your request.
  • Any product that was used or fully/partially installed is non-returnable.
  • In some cases, return of the physical product may not be required. For these products, instructions will be provided on how to process a field destroy or dispose of the original item.
  • The few exceptions for items that cannot be returned include:
    • Items classified as “special order” or “made to order”
    • Custom Wheels & Tires Packages
    • Electronics
    • Any non-EPA compliant product including but non limited to catless test pipes, downpipes, headers and high flow cats. We will try to make as many accomadations as possible however a 25% restocking fee will apply. Please contact us to learn more.
  • To start your return please click HERE

Cancellations
We all know that things happen a people change their mind as soon as the purchase things. We take pride in how quickly we get things out the door and with 4 warehouses to ship from plus stock owned at our manufacturers, that speed is always increasing. This is why we only except full cancellations within 30 minutes of placing an in stock order. This helps us ensure your package gets out on the truck immediately or can be flagged before it goes through the packaging process. For orders that are not in stock or special order, we allow 24 hours. Cancellations can be done online by following the instructions found HERE or by emailing [email protected] ,

Your request will be processed as quickly as possible, but please note that sometimes products ship quicker than expected. After 24 hours, or after an out of stock item has been confirmed, fees will apply to all cancellations with the exception of Special Order items, made to order items or custom built items; which can not be cancelled after the 24 hour period. Items confirmed on reserve or pre-ordered are subject to a 10% cancellation fee.

Cancellations are subject to a 10% cancellation fee. This fee is not to rip you off in any way. When you place an order, we lose 3% due to credit card processing, and also another 3% to credit your account. The other 4% is much less then what is needed to cover all other costs and expenses lost by cancelling an order, that was already processed. This fee is will only be imposed on orders that have not shipped. If a special order has been placed, such as pistons, turbo's, etc., and the items are built and ready to ship out, and a cancellation is requested, a 25% cancellation fee will be imposed IF possible to be cancelled.

  • To start your cancel please click HERE

What are my shipping fees?
For orders delivered within the continental US where reason for return isn't a result of a JM Auto Racing error, the cost of the initial shipping charge and a return fee will be deducted from your refund. A prepaid shipping label(s) will be provided.
Freight, international & non-continental US returns are accepted, however coordination of return shipping is the responsibility of the client. In the event an error is made by JM Auto Racing, a return shipping label will be provided.

Сore deposits
Some products sold on JM Auto Racing include a core deposit. These parts have a deposit that is charged upon purchase and fully refunded upon the return of the core. Cores must be in rebuildable condition and matching vehicle application to the product sold. Once the product is received and inspected, the deposit will be refunded to your original form of payment. Note: Product cores returned that are not fully assembled or are not the unit that was removed from the vehicle, will not be refunded and the core will be discarded. Detailed instructions on Core Deposit Returns can be found here.

Defective, damaged, or incorrect products
We all know that accidents happen sometimes. If your product(s) arrive defective, damaged, or simply incorrect, please contact our customer service department as soon as possible. Please do not attempt to use, install, modify, or repair the part! We will send you a replacement part and provide you with a prepaid return label to return the defective part. In some instances, return of the product may not be required. Products must be returned to us within 30 days. If the damage was caused by a shipping courier, we will schedule a damage pick up by the courier. Photos of the damage, defect, or fitment issue may be requested in order to correctly process your request. For items mispackaged or missing, returns and replacements will be handeled as warranty requests, subject to manufacturer involvement and normally handled within 24-48 hours. Please note that products must be in the original packaging and there are additional requirements for products that ship freight.

LTL and Freight Shipments will cover the delivery of most oversized items, including but not limited to, body kits, hoods, trunks, spoilers, doors, roll cages. Items should be thoroughly inspected at time of delivery. Any damage NEEDS to be notated on the Bill of Lading prior to the driver leaving for an insurance to be valid. If damage, is not noted, the insurance is voided out and will need to be dealt with between you and the shipping carrier.

Billing, refunds & credits
Payment for orders placed using PayPal of Affirm will be captured as soon as the order has been successfully placed. Payments for orders placed using a debit or credit card will be authorized only and captured upon shipping. What does this mean? If your order is in stock, it will be charged normally. For out-of-stock items arriving within 30 days, you may see the authorization temporarily fall off. The funds will be placed back into your account and you won't see the pending charge from us. Once the item ships, you will see the funds deducted and the charge posted to your account. For out-of-stock items after 30 days, the above will take place, however we will have to recharge your card once the item is ready to ship.

Refunds for returned products are issued with 3-5 business days once they are received by our warehouse and inspected. Refunds will be issued via the same payment method originally used to place the order (Credit Card, PayPal, Google, Affirm, Check). All returns, where JM Auto Racing is not at fault, will have 15% restocking fee less than cost of freight. Free shipping items will have the initial freight fees deducted from the final refund. Shipping is only free if you keep the item you purchased. Some items will have a higher restocking fee. This information will be revealed to you up front upon requesting a return. Once the refund has been issued a confirmation email will be sent. Please allow an additional 5-7 days for the credit to appear on your account.

Shipping & delivery
To ensure a fast and safe delivery we use FedEx, DHL, Ontrac, USPS, & UPS Ground/Air shipping services. Available shipping methods may vary for different type of products and shipping destinations. Most products in stock ship same day, or within 1 business day after which its delivery can be tracked via tracking number sent to your email. For custom or made to order items shipping time varies as they may have to be manufactured, painted, embroidered, or assembled.

Please keep the following in mind:

  • Products that are oversized must ship truck freight / LTL which differs from ground shipments. NOTE: These oversized items require inspection and a signature upon delivery. For more information on freight shipping click here.
  • Shipments to Canada are treated as all other international shipments. It is the recipient's responsibility to pay all applicable duties, taxes, & brokerage fees. Detailed Info can be found here here.
  • Shipments to HI, AK, PR, Guam, Virgin Islands, APOs, & Canada might require extra shipping charges. International shipping quotes will be e-mailed to the customer before the credit card is charged.
  • Oversized items such as hoods, body kits, bumpers, tonneau covers, roofs, trunks and spoilers may require additional postage that is not displayed on the website. You will be contacted prior to the item shipping to confirm.

To request an international shipping quote before placing an orderIf you would like special shipping arrangements, please contact us via live chat, email or call us at 1.855.998.8726

Disclaimer
In effort to provide our valued clients with the most up to date and accurate information, JM Auto Racing is continuously implementing real-time updates to our online superstore. Due to the immediate nature of these updates the correction of any errors and/or omissions can happen at any time without prior notice. This information may include but is not limited to pricing, availability, suggested use, fitment, compatibility, and warranties.

JM Auto Racing is not responsible for any additional charges, labor, loss, or damage incurred as a result of information, correct or incorrect, referenced or products purchased from JM Auto Racing. While we work to avoid any errors or omissions that may appear on the JM Auto Racing website, we do reserve the right to cancel any undelivered orders based on inaccurate information. more details

Additional Info

All Skunk2 products are carefully planned and designed in-house using the latest computer simulation and modeling techniques, followed by careful testing in controlled laboratory environments using state-of-the-art equipment. Each product is then subjected to rigorous dyno, street, and race track testing to ensure proper performance in the most extreme conditions. For these reasons, top street cars and race cars worldwide rely on Skunk2 products.

As part of Skunk2's commitment to developing industry-leading products, we've remained actively involved in various forms of motorsports through technical partnerships, sponsorships, as well as with our own race vehicles for more than 15 years. We've gone on to secure a number of drag racing and road racing records and championships, including earning the title of the world's first 10-second naturally aspirated Honda. Racing provides us with the data necessary to produce high-performance parts utilizing innovative designs, advanced metal alloys, cutting-edge manufacturing methods, and stringent quality-control measures.

Driven by the desire to make things go faster, Skunk2's staff is comprised of industry leaders, racers, and enthusiasts who are passionate about what they do and understand what other enthusiasts want. Our perspective is shaped by real-world racing experiences as well as by practical science, and that's precisely what makes Skunk2 products so good. Firmly grounded in our understanding of engineering, we make every effort to embrace advanced technology. Our goal is to make performance and technology accessible to other enthusiasts through innovative manufacturing techniques.

Since 1994, we've released a number of industry-leading products, including the first cast aluminum, high-performance intake manifold, cutting-edge composite fuel rails, and valvetrain components made from premium materials. Skunk2 is acclaimed as being the first U.S.-based sport compact parts manufacturer to offer CNC-machined, adjustable cam gears in 1995 as well as billet camshafts in 1999. As a result of continually pushing our engine development capabilities in the racing world, we've discovered a number of exciting "power secrets" that are incorporated into every Skunk2 product.

Today we continue our tradition of creating leading-edge products through a state-of-the-art engineering and R&D department as well as through extensive engine development and testing both on the race track and the street.

JM AUTO RACING carries a wide range of performance auto parts, as well as car accessories and truck accessories. Whether it be body styling such as body kits, hoods, trunks, splitters, spoilers, and carbon fiber items; performance auto parts and car accessories such as turbo kits, superchargers, intakes, exhaust systems, cam gears, clutches and flywheels; suspension accessories such as coilovers, shocks, struts, springs, sway and strut bars, alignment kits and tie bars; or lighting accessories such as projector and euro headlights, HID kits, bumper lights, taillights, brake lights and undercar lighting, JM AUTO RACING has it all. Don't see what you're looking for? No problem. Give us a call or send us an email because chances are JM AUTO RACING has the items in stock.

Warranty

WARRANTY:

Skunk2 Racing warrants all products to be free from defects in materials and workmanship for normal use and service, regardless of mileage, for a period of time not to exceed 12 months from the original date of retail purchase. Parts returned must be determined by Skunk2 Racing to be defective prior to any warranty credit or replacement is issued. Skunk2 Racing's obligation under warranty shall be limited to repairing or replacing, at its discretion, any part proven defective. The customer must prepay transportation charges. Final determination of the suitability of the products for the use contemplated by the buyer is the sole responsibility of the buyer.

Skunk2 Racing shall not be liable for any special, direct, indirect, incidental or consequential damages that might be claimed as a result of the failure of any part, including claims for delay, loss of profits, or labor. Skunk2 Racing shall not be liable for any damages or injuries to persons or property resulting from improper installation or misuse of any part subject to this warranty. There are no other warranties expressed or implied extending beyond those set forth above.

Customer Reviews
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Top Reviews
best customer service and quality product
by robert c on April 25, 2022
 
 
 
 
 
Verified Purchase

Item was on back order was kept updated the whole way through and header was delivered on time and and was even nicer than expected definitely will be ordering more through jmautosports really good experience especially because no other company I could find carrying this item

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Best place to shop for car parts hands down
by Dante B on May 26, 2022
 
 
 
 
 
Verified Purchase

I had been in search for this header for months and constantly skipped over jm cause i didn’t know who they were. i tried 5 different places that didn’t actually have the header in stock and one place that told me they did and i waited 6 weeks and got nothing. I called jm auto and he had in stock and i triple checked with him before ordering. and once i did place my order i got it in 3 days. i should’ve started with them. fast shipping, the part was exact. and they were nice to me even when i was trying to call bullshit on their stock! I’m only using these guys from here on out! thank you guys!

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Good quality
by Clifton T on September 12, 2022
 
 
 
 
 
Verified Purchase

good quality fast shipping but wish the product came with a header gasket would make life lot more easier.

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