DC Sports Stainless Header for 94-01 Integra RS/LS/GS

DC Sports 4-2-1 Header for 94-01 Integra RS/LS/GS (Equal Length, 50-State Legal)

That factory exhaust manifold on your Integra is a heat-soaked lump of cast iron, and it's quietly choking the car. This DC Sports 4-2-1 header throws it in the bin and replaces it with a true equal-length, mandrel-bent design. Four equal-length primaries flow into two secondaries, then into a single collector, and that layout isn't just for looks. It times the exhaust pulses to build torque right where you actually drive, roughly 3,000 to 6,000 rpm, so your B-series pulls harder in gear, wakes up quicker when you stab the throttle, and feels stronger all through the midrange.

Why 4-2-1 And Not 4-1

Here's the honest difference. A big 4-1 header chases peak numbers at the very top of the tach and leaves the low and midrange soft to get there. Great if you live at redline on a track, not so great for a car you actually drive. This 4-2-1 goes the other way. It fills in the usable rev range you spend most of your time in, so the car feels quicker on the street instead of only looking good on a dyno graph. For a street-driven B-series that still sees canyon runs, highway pulls, and the odd track day, that's the smarter setup. The compact merge helps too, keeping everything tucked up so your ground clearance stays close to stock and you're not scraping the collector on every steep driveway.

Stainless That Won't Rot Out On You

This one's built from 304 stainless with smooth transitions inside, so the gases flow clean and the whole thing shrugs off corrosion. That last part matters more than people think. The reason so many headers get replaced isn't performance, it's rust. This one resists it, so you bolt it on and forget about it instead of doing this job again in a few years. You get a sharper exhaust note, better throttle response, and a part that lasts.

Optional Ceramic Coating (SKU AHC6006)

If you want serious heat control, step up to the ceramic-coated version. The coating is rated to 1,200°F and it does two jobs at once. It keeps heat inside the tubes, which helps exhaust gas velocity and keeps your power repeatable on long pulls and hot days. And it drops your under-hood temps noticeably, so your intake, wiring, and hoses all live an easier life and you're less likely to heat-soak your intake charge sitting in traffic or staging lanes. It also holds up to repeated heat cycles and keeps the header looking clean instead of flaking and rusting. We run this exact coated version on our own cars for that reason.

Legal In All 50 States

This is the part that lets you have your fun and still pass inspection. This header is CARB compliant with an EO number, so it's legal in all 50 states. You bolt it on, daily the car, and pass both visual and tailpipe testing without playing the swap-the-stock-manifold-back-on game every couple of years. Real gains, no compliance headache.

What You're Getting

• Midrange where you use it. The 4-2-1 layout adds real torque and gives your B-series a stronger pull from around 3,000 rpm to redline.
• Cooler engine bay. Go with the ceramic coating and it keeps heat in the pipes, protecting your hoses, wiring, and intake charge.
• 50-state legal. CARB compliant with an EO number, so you clear visual and sniffer tests without drama.
• Built to take abuse. Thick flanges resist warping and the construction holds up to years of high-rpm pulls, backroad runs, and track days.
• Easy to live with. It works with your stock or aftermarket cat-back, intake, and tune, so it drops into just about any RS, LS, or GS build.

Who This Is For

This is for the owner who actually drives their Integra and wants it to feel alive every time they get into the throttle. Whether you're dailying it, blasting backroads, or chasing cones at an autocross, this header gives you a cleaner note, stronger midrange, and better top-end without turning the car into a pain to own or a fight to keep legal. It wakes the car up and stays out of your way otherwise.

Options And Specs

Fits: 1994-2001 Acura Integra RS, LS, and GS (B-series). Design: True equal-length 4-2-1, mandrel bent. Finishes: 304 stainless steel (SKU AHS6006) or ceramic coated, rated to 1,200°F (SKU AHC6006). Emissions: CARB compliant, 50-state legal, EO number issued.