2023-2024 Honda Civic Type-R FL5 APEXi N1-X Evo Extreme Exhaust 164-KH03

Item Specifics:
Brand: APEXi
Part Number: 164-KH03
Series: N1-X Evolution Extreme
Type: Catback Exhaust
Piping: 75mm → 75mm x1 / 61mm x1
Tips: Dual 123mm Titanium
Material: TIG-Welded SUS304 Stainless Steel
Fitment: 2023-2024 Honda Civic Type-R (FL5)
Condition: New
Description:
This is the exhaust that gives the FL5 the voice it deserves — a genuine APEXi N1-X Evolution Extreme catback, part 164-KH03, built on the proven fundamentals of APEXi's legendary N1 muffler. Straight-through layout for maximum exhaust efficiency, precision TIG-welded SUS304 stainless steel construction, and APEXi's patented Megaphone piping structure that produces real torque and throttle response across the whole powerband, not just up top.
The internal hybrid silencer unites genuine power gains with a mature, controlled exhaust tone — aggressive when you want it, without crossing into obnoxious. Finished with lightweight titanium dual-wall tips that aren't just for looks — the rolled and riveted double-pipe structure acts as a diffuser, actually reducing exhaust temps while giving you that sporty heat-gradient finish. This system also works with your factory OEM valve motor system, so Sport and Comfort modes stay quiet and civil, while +R mode lets it open up and actually sound like a Type-R should.
But this isn't just about a louder exhaust. It's about a Civic Type-R that finally sounds as serious as it drives — the difference between stock and a car that announces itself. Whether you're daily driving in comfort or putting laps down in +R, this system does exactly that.
🚚 Fast shipping nationwide — orders ship next business day, typical arrival in 2-4 days
⭐ Local pickup available — Pico Rivera, CA showroom
📞 Questions on fitment or install? Call 562-366-4516 or Text 562-270-5361 — happy to help
Item Details:
Genuine APEXi N1-X Evolution Extreme catback exhaust, part 164-KH03
TIG-welded SUS304 stainless steel construction
Patented Megaphone piping structure
Lightweight dual-wall titanium tips (123mm x2)
Compatible with factory OEM valve motor system
Made in Japan
Fits: 2023-2024 Honda Civic Type-R (FL5) only
Why Buy From JDM CARBOY?
✅ Genuine products
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✅ Local pickup available
✅ Financing available at checkout
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Professional installation recommended. Gaskets and installation hardware included.