PLM 02-06 Acura RSX Header w/ High-flow Cat K20 K24

PLM Power Driven K-Series RSX Header w/ High Flow Catalytic Converter – Fits K20 & K24 Engines
The PLM Power Driven RSX K-Series Header with Bolt-On High Flow Cat is a race-inspired exhaust upgrade designed to extract the full potential of your K20 or K24 engine swap. Built specifically for the Acura RSX and EP3 chassis, this setup enhances both horsepower and torque by improving exhaust flow with its short-tube Tri-Y header design and a bolt-on 200-cell high-flow metallic catalytic converter.
Constructed from 304 stainless steel and TIG welded for strength and reliability, the PLM RSX header is engineered for performance enthusiasts who want real gains and lasting durability. The multi-piece design allows for easier installation, service, and fitment adjustments – all while maintaining a true 2.5” collector for maximum flow.
This kit includes all necessary components for a proper install: gaskets, hardware, and a high-flow cat that bolts directly to the header, making it a convenient and effective upgrade for your street or track build. Whether you’re daily driving or prepping for the next race, this header is an essential mod for K-swapped RSXs looking for the perfect blend of sound, power, and quality.
⚙️ Key Features
✔ Direct bolt-on fit for RSX & EP3 with K24 or K20 engines
✔ Includes 200-cell high-flow metallic catalytic converter – emissions-friendly performance
✔ Full 304 stainless steel construction – TIG welded for durability and longevity
✔ Short tube Tri-Y header design – optimized for midrange torque & throttle response
✔ True 2.5″ outlet collector – smooth flow for increased horsepower
✔ CNC-machined manifold flange – precision fit, warp-resistant, and leak-free
✔ Multi-piece modular design – easier install, maintenance, and upgrades
✔ Includes gaskets & full hardware kit – everything needed to bolt on and go
✔ One year limited warranty – backed by PLM’s reputation for reliability
Performance Gains & Benefits
The PLM RSX K-series header significantly improves exhaust scavenging by optimizing flow through its Tri-Y design, resulting in better throttle response and noticeable horsepower gains throughout the rev range. The high-flow catalytic converter adds compliance and flow – a perfect middle ground between raw performance and street legality. Customers report improved midrange torque, a deeper exhaust tone, and smoother engine feel post-install.
Made with Honda Enthusiasts in Mind
PLM (Private Label MFG) has earned its reputation as one of the most trusted performance brands in the Honda scene. Designed in the USA and tested on countless K-swapped platforms, this header delivers consistent performance at an unbeatable value. Don’t waste time on knock-offs or copycats – choose a brand that has been battle-tested by racers and daily drivers alike.
What’s Included
PLM Power Driven Short Tube Tri-Y Header
Bolt-On High Flow 200-Cell Metallic Catalytic Converter
Gaskets & Complete Hardware Kit
Installation Support Available
Vehicle Fitment & Compatibility
2002–2006 Acura RSX Base & Type-S (w/ K20 or K24 swaps)
2002–2005 Honda Civic Si EP3 (K-Series engine equipped)
Compatible with most K24/K20 engine swap setups in RSX/EP3 chassis
This header was designed to drop into RSX and EP3 bays with ease, especially in K24 builds where midpipe clearance and flow are crucial. Its modular layout also makes it easier to work around lowered setups or modified engine bays.
Why Buy From Us?
✅ Fast shipping – usually within 24–48 hours
✅ Honda-specific fitment expertise
✅ Trusted source for genuine PLM performance products
✅ Competitive pricing with full warranty support
Overview:
Direct-fit high-flow catalytic converter tailored for RSX chassis – engineered for easy installation and optimal exhaust flow.
200-cell metallic core cat – designed for performance without compromising emissions compliance.
Complete install kit – comes with premium gaskets and all required mounting hardware.
Constructed from 304 stainless steel – corrosion-resistant and built for long-term durability.
Backed by a 1-year manufacturer warranty – peace of mind included.
Tri-Y short tube header layout – optimized for mid-range torque and throttle response.
True 2.5” outlet collector – ensures smoother exhaust transitions and better power delivery.
Precision CNC-machined flange – for a leak-free, warp-resistant seal.
Modular race-inspired design – makes service, upgrades, and install a breeze.
Part #: PLM-HDC5-K24-HEADER-CAT