SPDZ1 K Series K20 K24 RH Race K-Swap 4-2-1 Ramhorn Header
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- 3rd-Party Tested
SPDZ1 RH Race 4-2-1 Ramhorn Header – K-Swap K20 / K24 (EG, EK, DC2, DA)
Built for racers. Engineered for results.
The SPDZ1 RH Race 4-2-1 Ramhorn Header is the ultimate long-tube solution for serious K-Swap builds. Whether you’re pushing a high-revving K20 or a torque-heavy K24, this header is engineered to deliver unmatched throttle response, increased horsepower, and cleaner exhaust flow across the powerband — all while maintaining proper fitment in your EG, EK, or DC2/DA chassis.
Designed for serious performance and fabricated with race-grade materials, the SPDZ1 Ramhorn Header outclasses the competition with thicker flanges, improved welds, premium gaskets, and enhanced packaging protection — because quality matters from unboxing to redline.
Key Features:
- True 4-2-1 Tri-Y Ramhorn Design: Engineered for superior exhaust scavenging, torque delivery, and high-RPM power.
- Race-Proven Gains: Expect significant horsepower and torque increases, improved throttle response, and reduced backpressure.
- Precision TIG Welded 304 Stainless Steel: Built from 18-gauge mandrel-bent tubing with CNC-machined 0.38” flanges for a warp-resistant, leak-free seal.
- 2-Piece Slip-Fit Design: Makes install and maintenance fast and frustration-free — ideal for street or track swaps.
- True 2.5” Collector: Supports maximum flow for naturally aspirated or lightly boosted setups.
- Complete Hardware & Gasket Kit: Includes header gasket, donut gasket, flange, spring bolts, washers, and nuts for a perfect seal.
Vehicle Compatibility:
- 1992–1995 Honda Civic (EG K-Swap)
- 1996–2000 Honda Civic (EK K-Swap)
- 1990–2001 Acura Integra (DA/DC2 K-Swap)
- Compatible with both K20 and K24 engine swaps
Installations Policy
This product may require some modification to ensure a proper fitment. Once the item has been installed or modified in any way, it is not eligible for return or refund. We recommend having this 2-piece item put together by a professional installer.
Why SPDZ1?
At SPDZ1, we don’t believe in compromise. Our headers are developed with hands-on input from racers and fabricators to ensure maximum performance, exceptional fitment, and long-term durability. Each unit is built with pride and shipped in reinforced packaging for a flawless customer experience from start to finish.
Shipping Methods
At OEM Car Parts USA, we are committed to ensuring that your orders reach you quickly and safely. To provide you with reliable delivery options, we use trusted carriers including UPS, USPS, and FedEx.
Shipping Times
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Standard Shipping: Most orders are processed and shipped within 1-2 business days. Delivery times vary based on your location, but you can generally expect to receive your order within 3-7 business days after it has been shipped.
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Expedited Shipping: If you need your parts faster, we offer expedited shipping options. Depending on your choice, delivery times can range from 1-3 business days. Expedited shipping rates will be calculated at checkout.
Shipping Costs
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Standard Shipping: Enjoy free standard shipping on all orders within the United States. We believe in providing value to our customers without additional shipping costs.
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Expedited Shipping: The cost for expedited shipping will be calculated based on the weight of your order and your delivery location. You will be able to review the shipping cost before finalizing your purchase.
Order Processing
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Order Confirmation: After placing your order, you will receive a confirmation email with your order details and tracking number.
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Tracking Your Order: Once your order has shipped, you will receive an email with a tracking number and a link to track your shipment through UPS, USPS, or FedEx. You can use this information to monitor your order’s progress until it arrives.
Shipping Restrictions
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Delivery Locations: We currently ship to addresses within the United States. Unfortunately, we do not offer international shipping at this time.
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P.O. Box Addresses: For security reasons, we recommend providing a physical address for delivery. While we can ship to P.O. Box addresses, please note that some shipping carriers may have limitations or additional processing times.
Missing or Damaged Orders
If your order is missing or arrives damaged, please contact our customer service team at info@oemcarpartsus.com or call us at +1 (934) 201-2903 within 5 business days of receiving your shipment. We will work promptly to resolve any issues and ensure your satisfaction.
Contact Us
For any questions or further assistance regarding shipping, please don’t hesitate to reach out to us:
- Email: info@oemcarpartsus.com
- Phone: +1 (934) 201-2903
We are here to ensure a smooth and enjoyable shopping experience. Thank you for choosing OEM Car Parts USA!
Frequently Asked Questions (FAQs)
Are OEM products more expensive than aftermarket alternatives?
OEM products might have a higher upfront cost compared to aftermarket parts, but their superior quality and durability often make them a more cost-effective choice over time. Investing in OEM ensures you’re getting parts specifically designed for your vehicle, which can lead to better performance and longevity.
Can I purchase OEM parts online or do I need to visit a dealership?
You don’t need to visit a dealership to get OEM parts. You can conveniently purchase genuine OEM components from authorized distributors and reputable online retailers like OEM Car Parts USA. Our online store provides a wide selection of high-quality parts delivered straight to your door.
Are parts from brands like Mopar, ACDelco, and Motorcraft interchangeable between different vehicle brands?
No, parts from Mopar, ACDelco, and Motorcraft are typically designed for specific vehicle brands. It’s crucial to ensure compatibility with your vehicle’s make and model by checking part numbers and consulting with a knowledgeable expert.
Can I install OEM parts myself, or is it better to have a professional handle it?
While some OEM parts can be installed by DIY enthusiasts, the complexity of installation can vary. For the best results and to ensure proper fitment and performance, we recommend having a trained mechanic install the parts, especially if you’re unfamiliar with automotive repairs.
Do OEM parts come with a warranty?
Yes, many OEM auto parts come with a manufacturer’s warranty that covers defects or issues. Be sure to check the warranty details for each part at the time of purchase, and keep your receipt for any potential warranty claims.
How can I verify that I’m buying genuine OEM parts and avoid counterfeits?
To ensure you’re purchasing genuine OEM parts, look for official logos and part numbers on the packaging. Always buy from authorized dealers or well-established online retailers like OEM Car Parts USA. This helps guarantee that you’re getting authentic parts that meet the highest standards.