Exhaust› Headers, Manifolds and Components

PLM (Private

4-2-1 Race Header

$495.00

SKU: PLM-TSX-HEADER

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The PLM 4-2-1 Race Header is a Tri-Y, two-piece exhaust header designed for maximum flow and horsepower. It is constructed from 18-gauge 304 stainless steel and features a CNC-machined manifold flange and a 2.5-inch collector. This header is ideal for competition applications like autocross, drag racing, and road racing.
Show original supplier description
The PLM Power Driven K-Series 4-2-1 header is expertly designed for enthusiasts seeking optimal performance in their 2004-2008 Acura TSX and 2003-2007 Euro Accord CL7/CL9 models. Constructed from durable 18-gauge 304 stainless steel, the header features a long tube Tri-Y design for enhanced efficiency and a two-piece construction for easier installation. It includes a CNC-machined manifold flange with a 0.38-inch thickness and a true 2.5-inch collector. The header is designed for a 100% bolt-on installation, simplifying the upgrade process. This header is recommended for various forms of competition, including autocross, drag racing, and road racing. It comes with a one-year limited warranty from PLM. **Important Fitment Note:** This header is compatible with the Acura TSX 2004-2008 (CL7/CL9) and the Honda Accord (Euro Spec) 2003-2007 (CL7/CL9). It explicitly **does not fit** US-Spec Accord models. Additionally, it fits the 2001-2005 Honda Civic EP3 and the 2002-2006 Acura RSX (Base 5 Speed, must be equipped with Type-S Catback) and RSX Type S. Some assembly may be required.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandPLM (Private
Part NumberPLM-TSX-HEADER
CategoryExhaust

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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