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Free standard shipping on orders over $149
We ship to the lower 48 United States. Orders over $149 ship free; a flat rate applies under $149. Estimated delivery dates are shown at checkout based on item availability and the shipping option you choose.
We text or call to confirm sizing & fitment before we ship.
Every Factory SuperBike order includes a free expert check from real riders. Before we ship helmets and gear, we text or call to confirm your size and fit; for parts, we verify fitment to your bike. This is why we don't have to guess and you don't have to gamble.
Helmet & gear orders: reply to our text to confirm and your order ships, typically same day. No reply within 48 hours and we'll call you. Questions now? Call or text (503) 832-7336.
The Akrapovic Optional Header is a stainless steel header collector for the 2020-2024 Kawasaki Ninja 1000SX and the 2025 Ninja 1100SX — the part that turns an Akrapovič slip-on into a complete system.
On the Ninja 1000SX the catalyst sits in the header section, which is why a muffler change alone gets you sound and appearance but leaves the restriction untouched. Replacing the header is what opens the exhaust path properly.
Akrapovič sells this separately by design: buy the slip-on first, add the header when you want the rest.
Fits the 2020-2024 Kawasaki Ninja 1000SX and the 2025 Ninja 1100SX. This is a header only — it requires a compatible Akrapovič muffler, such as the carbon Slip-On Line (S-K10SO32-HRC) we also stock for these machines.
Removing the catalyst affects the bike's emissions status; confirm what applies where you ride, and expect to need a remap for correct fuelling.
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