Skunk2 Alpha Series Header for 09-14 TSX/08-12 Accord

Skunk2 Alpha Series Race Header - 2009-2014 Acura TSX & 2008-2012 Honda Accord (K24)

The factory manifold is the biggest thing holding your K24 back, and this is Skunk2's answer to it. The Alpha Series takes the design work from their race headers and puts it in a package normal people can actually afford. You get a large bellmouth collector feeding 3-inch piping, cast stainless where the heat is worst, and mandrel-bent T-304 the rest of the way. It's a one-piece design that eliminates the catalytic converter entirely, and it bolts straight to your factory cat-back with no modifications.

Why The Bellmouth And 3-Inch Piping Matter

The design is where a header earns its money, and Skunk2 went big here on purpose. The large bellmouth gives the exhaust a smooth, gradual transition into the collector instead of an abrupt step that trips up flow and creates turbulence right where you want velocity. From there it's 3-inch piping, sized to move serious volume out of a 2.4-liter engine that's being asked to breathe. Combined with the cat delete, you're removing every meaningful restriction between the head and the cat-back, and that shows up as more horsepower and torque across the powerband rather than one peaky spot on a dyno chart.

Built To Survive Exhaust Heat

Headers live in the harshest thermal environment on the car, so the materials matter more than the marketing. The primary section is cast stainless steel, chosen for heat resistance and strength where temperatures are highest. From there, air moves through CNC mandrel-bent T-304 stainless, so the pipe diameter stays consistent through every bend instead of crushing down and choking flow. There's a stainless braided flex section to absorb engine movement so the header isn't fighting the drivetrain every time you get on it, and heavy-duty thick flanges that keep the connections sealed and leak-free instead of warping after a few heat cycles.

Bolts On, No Modifications

This is a genuine direct bolt-on. It connects to your OEM cat-back exhaust in the factory location with no cutting and no fabrication, and it includes bungs for your factory O2 sensors so your sensors go right back where they belong. That last part saves a real headache, since improvising O2 sensor locations is how people end up with sensors reading wrong and a car that runs poorly.

This Is A Race Header

Being straight about what you're buying. The one-piece design eliminates the catalytic converter, which is exactly how it flows the way it does, and it also means this is a race application. It won't pass an emissions inspection and it's not street legal in areas with testing. If your TSX or Accord is a track car or off-road-use build, this is a lot of header for the money. If it's a daily in an inspection state, this isn't the right part for you.

Fits Your K24

This header fits the 2009-2014 Acura TSX and the 2008-2012 Honda Accord running the K24. If you've got a K24 in one of those cars, this is the Alpha Series header for it.

Who Should Run This Header

This is for the TSX or Accord owner who's done the bolt-ons and figured out the manifold is what's left. Track car, dedicated build, or anything where emissions aren't part of the equation, this gives you race-header design and real flow gains without race-header pricing. Bolt it on, get it tuned, and find out what the K24 has been sitting on.

Fits: 2009-2014 Acura TSX and 2008-2012 Honda Accord (K24). Design: one-piece, large bellmouth with 3" diameter piping. Construction: cast stainless steel primaries, CNC mandrel-bent T-304 stainless, stainless braided flex section, heavy-duty thick flanges. O2 sensors: bungs included for OEM sensors. Application: race use, eliminates the catalytic converter. Install: direct bolt-on to the OEM cat-back location, no modifications required.