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Apexi

APEXi N1 Evolution-X Exhaust Honda Civic Si Sedan (FC1) 2017-2021

$1,299.00

SKU: A02U 164KH002

Out of Stock
In Stock
Ships by Jun 16
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The APEXi N1-X Evolution Extreme Cat Back Exhaust system optimizes exhaust efficiency with a straight-thru design and internal hybrid silencer, featuring a lightweight titanium tip for temperature reduction and a sporty appearance. It is constructed from full TIG-welded SUS304 stainless steel and includes a resonated midpipe for comfort and performance gains. The patented Megaphone piping enhances torque and throttle response.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandApexi
Part NumberA02U 164KH002

Videos

A'PEXi N1-X Evolution Extreme Catback Exhaust | Exhaust Bible

A'PEXi N1-X Evolution Extreme Catback Exhaust | Exhaust Bible
A'PEXi N1-X Evolution Extreme Exhaust - 2022+ Honda Civic Si (FE1) / Acura Integra (DE4)

A'PEXi N1-X Evolution Extreme Exhaust - 2022+ Honda Civic Si (FE1) / Acura Integra (DE4)
N1-X Evolution Extreme Catback Exhaust- 2023+ Honda Civic Type-R [FL5]

N1-X Evolution Extreme Catback Exhaust- 2023+ Honda Civic Type-R [FL5]
Top 5 Exhausts For 11th Gen Honda Civic SI

Top 5 Exhausts For 11th Gen Honda Civic SI
A'PEXi N1-X Evolution Extreme Exhaust - 2022+ Honda Civic Hatchback Sport Touring / EX-L

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I Built a Type R With ALL JDM PARTS and its CRAZY!
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A'PEXi N1-X Evolution Extreme [Single-Exit] Catback Exhaust for Toyota Corolla Sedan (2019+)
FL5 Civic Type R POV Drive Apexi Exhaust Review

FL5 Civic Type R POV Drive Apexi Exhaust Review
Our 1st Apexi N1-X Exhaust on FL5 Civic Type R - Dyno Sound Check with Valve

Our 1st Apexi N1-X Exhaust on FL5 Civic Type R - Dyno Sound Check with Valve
Apexi N1 Silencer Comparison

Apexi N1 Silencer Comparison
Honda Civic Type R FK8 Apexi N1-X Evolution Exhaust

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Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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