Speedzone Performance LLC
SPDZ1 K Series K20 K24 Megaphone Pipe Header Exhaust 3" 4-1 Tri-Y EK EG DC2 Civic V Band Down Pipe
SPDZ1 K Series K20 K24 Megaphone Pipe Header Exhaust 3" 4-1 Tri-Y EK EG DC2 Civic V Band Down Pipe
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SPDZ1 K-Series Megaphone 4-1 Tri-Y Race Header – 3” V-Band Collector | For K-Swap EG, EK, DC2
Maximum Flow. Maximum Torque. Maximum Performance.
The SPDZ1 K-Series K20/K24 Megaphone 4-1 Tri-Y Race Header is built for serious K-swap enthusiasts who demand nothing but peak performance and aggressive sound. Designed to extract every ounce of power from your K-series engine, this header combines a long-tube 4-1 Tri-Y layout with a true megaphone-style collector that delivers explosive throttle response, improved mid-to-top-end power, and that raw race-car growl.
Unlike restrictive factory manifolds or shorty headers, the SPDZ1 unit uses a 3” V-band collector for seamless flow, ease of installation, and superior boost potential for turbo setups. Whether you’re building a weekend warrior or a full track weapon, this header will bring your K-swap to life.
Key Features:
- For K-Swap Applications: Fits K20/K24 swapped EG, EK, and DC2 chassis
- 4-1 Long Tube Tri-Y Design: Optimized for power gains across the RPM range
- True 3” Megaphone V-Band Collector: Maximum exhaust velocity and torque, plus easy install/removal
- CNC Machined 3/8” Flanges: Durable, leak-free connection that won’t warp under heat
- Ported Primary Flanges: For uninterrupted exhaust flow and velocity
- High Ground Clearance Design: Offset primaries for lowered builds
- Includes Gaskets, Springs, and Hardware: Everything you need to bolt up and go
- Crafted from Premium 304 Stainless Steel: TIG-welded for strength and longevity
Vehicle Compatibility:
- Honda Civic EG / EK (K20/K24 Swap)
- Acura Integra DC2 (K-Series Swap)
Note: For K-Swap use only – will not fit factory D/B-series engines.
Installations Policy
This product may require modification to achieve a proper fit. Once the item has been installed or altered in any way, it is no longer eligible for return or refund. We strongly recommend having this product installed by a professional.
Please note that some motor mount brands may require minor frame notching to ensure a proper fit for the megaphone header.
Disclaimer: This header is designed for off-road and motorsports use only. It may not comply with emissions regulations in certain regions. Please confirm legality in your area before purchasing.
SPDZ1 – When Power, Sound, and Fitment Matter

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