PRODUCT DETAILS
DC Sports Ceramic Header (HHC5020) - 2000-2009 Honda S2000 (AP1 / AP2)
The factory exhaust manifold is one of the few things holding a stock S2000 back, and this is how you fix it. The DC Sports HHC5020 is a direct bolt-on header built specifically for the 2000-2009 S2000, covering both the AP1 with its F20C and the AP2 with its F22C. You get T-409 stainless construction, a true 4-2-1 merge collector, and a ceramic coating rated to 1200 degrees, which together make this one of the most complete bolt-on exhaust upgrades you can do to the car. If you want your F-series to actually breathe, this is the header that gets it there.
Why 4-2-1, And Why It Matters On This Car
This is the part worth understanding, because it's the whole reason this header suits the S2000 so well. A big 4-1 header chases peak power at the very top and leaves the midrange soft to get there. On a screaming F-series that already loves to rev, that sounds tempting, but it means the car doesn't really wake up until past 6,000 rpm, and you feel the hole everywhere below that. The 4-2-1 goes the other way. Equal-length runners feed a stepped collector that builds velocity and torque through the midrange without giving up the top-end pull these engines are famous for. The result is a car that's stronger everywhere you actually drive it, on the street and on the track, not just in the last thousand rpm.
Built To Flow And Built To Last
The runners are 1.75 inch primaries stepping to a 2.5 inch outlet, mandrel-bent the whole way through, so there are no crimped bends choking down flow and the factory manifold restriction is simply gone. It's TIG-welded inside and out, with full-penetration welds at the runner junctions to keep turbulence down at high rpm, so there's no blow-through or rough seam disrupting exhaust velocity where it counts. The flanges are CNC-machined to stay flat and resist warping through hard heat cycling, whether that's track days or a summer of stop-and-go commuting. It's the kind of construction that seals on the first install and stays sealed.
The Ceramic Coating Does Real Work
The 1200-degree ceramic thermal barrier coating isn't just for looks, though it does look clean. It keeps exhaust heat inside the pipe instead of radiating it out into your engine bay, and cooler underhood air means a denser intake charge. The coating also shrugs off corrosion from road salt, moisture, and constant heat cycling, so the header holds up and keeps looking right instead of turning into a rusty, flaking mess a couple of winters in.
Fits Both AP1 And AP2, No Adapters
This is confirmed fitment for the entire 2000-2009 run. The AP1 from 2000-2005 runs the 2.0L F20C, and the AP2 from 2006-2009 runs the 2.1L F22C tuned for a broader torque curve, and DC Sports built the HHC5020 to fit both. Same bolt pattern, same O2 bung location, same collector outlet, so there are no adapters or fitment tricks required for either generation.
Bolts Right In
This is a genuine direct bolt-on, no fabrication and no surprises. Here's exactly how it fits your car:
- Bolts directly to the stock cylinder head exhaust flange
- Works with stock and aftermarket cat-back exhaust systems, no modification needed
- Factory O2 sensor bung is pre-installed, so your stock narrowband or an aftermarket wideband drops right in with no adapter and no chasing threads
- CARB compliant and 50-state legal under EO No. D-370-17, so it's fully street legal in California and everywhere else
That last one matters more than people expect. Plenty of headers make you choose between real gains and passing inspection. This one lets you bolt it on, daily the car, and clear emissions testing without playing games.
Who This Is For
The S2000 rewards the right modifications with a very direct, mechanical feel, and it deserves hardware built for it rather than something pulled off a universal shelf. This header is purpose-built for the platform, it fits and seals properly the first time, and it holds up under real use. Whether you're carving canyons, running track days, or just want your AP1 or AP2 breathing the way it always should have, this is the header to do it with. Bolt it on and go enjoy the car.
Fits: 2000-2009 Honda S2000, AP1 (F20C, 2000-2005) and AP2 (F22C, 2006-2009). Design: true 4-2-1 merge collector, 1.75" primaries stepping to a 2.5" outlet, mandrel-bent. Construction: T-409 stainless, TIG-welded inside and out, CNC-machined flanges. Coating: ceramic thermal barrier, rated to 1200°F. Install: direct bolt-on to the stock head flange, works with stock or aftermarket cat-back. O2 bung: pre-installed for factory narrowband or aftermarket wideband, no adapter. Emissions: CARB compliant, 50-state legal, EO No. D-370-17.
2000-2009 Honda S2000
- SKU: HHC5020
- Construction Material: T-409 Stainless Steel
- Collector Design: 4-2-1 Merge Collector
- Primary Runner I.D.: 1.75 in. (mandrel bent)
- Primary Runner O.D.: 1.9 in.
- Collector I.D.: 2.4 in.
- Collector Outlet: 2.5 in.
- Coating: Ceramic thermal barrier, rated to 1200-degrees F
- Weld Method: TIG-welded interior and exterior
- Flange: CNC-machined, warp-resistant
- O2 Sensor Bung: Pre-installed, factory location
- Emissions Compliance: 50-State C.A.R.B. legal - EO No. D-370-17
- Fitment Type: Direct bolt-on, no modification required
- Brand: DC Sports
- 1x DC Sports HHC5020 ceramic-coated 4-2-1 header assembly (T-409 stainless)
- 1x Header-to-cylinder-head gasket
- 1x Collector gasket
- 1x Hardware kit (mounting bolts and nuts, stainless)
- DC Sports installation instructions
Note: Factory O2 sensor bung is pre-installed on the collector. Stock O2 sensor reinstalls directly - no adapter needed. If you are running an aftermarket wideband, confirm bung thread size (18mm x 1.5) before ordering a new sensor.