DC Sports TSX Stainless & Ceramic Headers for 2004–2008 Acura TSX

If you're still choking your K24 with the stock manifold, this is the 04 Acura TSX exhaust header upgrade that actually moves the needle. The DC Sports TSX stainless steel header is a true 4-2-1, two-piece 04-08 TSX 4-2-1 header built specifically for the 2004–2008 Acura TSX. It uses equal-length T-409 stainless runners with a 1.7-inch inner diameter (DC Sports header 1.7 ID), so you're not stuck with the tiny factory passages. You get quicker throttle response, a stronger mid-range, and a smoother pull from 4,000 rpm to redline.

This TSX performance header bolts to the factory cat and stock exhaust—no cutting, welding, O2 extensions, or adapters. Just bolt it on. TSX header T-409 stainless construction with CNC-machined flanges (TSX header with CNC flanges) keeps the sealing surfaces flat so you’re not chasing annoying exhaust leaks 6 months later. For emissions, this DC Sports 50 state compliant header carries CARB EO D-370-14 for 2004–2007 TSX models, so it’s legal in all 50 states when you run it with the factory catalytic converter. It still fits 2008 cars, but you’ll want to double-check your local rules.

Optional Ceramic Coated Finish

If you’re fighting under-hood heat or you track the car, the DC Sports ceramic header option is worth a look. The ceramic coating is rated to 1,200°F and keeps more heat inside the runners, which helps maintain exhaust gas velocity and keeps power consistent when you’re doing back-to-back pulls or long sessions. This 2008 TSX high flow header setup pairs especially well with an intake and tune.

The coating also cuts down on radiant heat into your intake, wiring, hoses, and nearby paint. Compared to a bare TSX stainless steel header, the ceramic finish holds up better against corrosion and discoloration, especially if you daily the car in wet or winter conditions. If you want an Acura TSX header upgrade that doesn’t turn ugly after one salty winter, this is the one.

Part Numbers & Finish Options

• SKU: AHS6016 — Stainless Steel Finish (DC Sports stainless header)
• SKU: AHC6016 — Ceramic Coated Finish (DC Sports ceramic header)

Available Finishes: Stainless Steel, Ceramic Coated

Why It Makes Sense for the TSX

• True 4-2-1 equal-length Acura TSX exhaust header for better scavenging and stronger mid-range torque
• TSX mandrel bent header in T-409 stainless steel increases flow without killing low-end drivability
• Optional ceramic coating knocks down under-hood temps and improves long-term durability
• TIG-welded TSX stainless steel header construction helps resist cracking and corrosion over time
• Retains factory O2 sensor locations and catalytic converter for clean, straightforward install
• DC Sports TSX header carries CARB EO D-370-14 for 2004–2007 Acura TSX models
• Fits 2008 models as a 2008 TSX high flow header; verify local emissions requirements before you buy

We run these same Acura TSX exhaust headers on our own cars, so the fitment and durability aren’t a mystery—they’re proven.