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N1-X Evolution Extreme Catback Exhaust - 2022+ Honda Civic Si [FE1] / 2023+ Acura Integra [DE4]
A'pexi

N1-X Evolution Extreme Catback Exhaust - 2022+ Honda Civic Si [FE1] / 2023+ Acura Integra [DE4]

SKU164KH003
$1,399.00
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About: N1-X Evolution Extreme Catback Exhaust - 2022+ Honda Civic Si [FE1] / 2023+ Acura Integra [DE4]
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The A'PEXi N1 Evolution Extreme (N1-X) builds on the straight-through layout of the N1 muffler. An internal hybrid silencer balances flow with sound resonance, and the titanium tip is rolled and riveted onto a double-pipe structure that acts as a diffuser to reduce temperature, with a heat-gradation finish.

Features

  • Full TIG-welded SUS304 stainless steel
  • Matched and manufactured for select chassis
  • A'PEXi intricate designed brackets
  • Resonated midpipe structure

Specifications

  • Part Number: 164KH003
  • Exhaust Type: N1 Evolution Extreme Muffler (N1-X)
  • Piping Diameter: 3inch to 2.5inch
  • Tip Diameter: 105mm. x 2
  • Exhaust Tip Style: Titanium Round- Dual wall rolled, Angle cut (Riveted)
  • Pieces: 3
  • Piping Material: SUS304 Stainless Steel
  • Muffler Material: SUS304 Stainless Steel
  • Muffler Tip Material: Titanium
  • Bolt-On Installation: Yes

Fitment

  • Year: 2022+, 2023+
  • Make: Honda, Acura
  • Model: Civic Si Sedan FE1 Integra Sedan DE4 Civic Touring Sedan (1.5L Turbocharged)** ONLY compatible with factory OE Honda rear diffuser trim garnish PN: 71541-T20-A50 (Right), 71591-T20-A50 (Left) ** Civic Sedan EX (1.5L Turbocharged) ** ONLY compatible with factory OE Honda rear diffuser trim garnish PN: 71541-T20-A50 (Right), 71591-T20-A50 (Left) **
  • Body Style: FE1 - 4 Door Sedan DE4 - 4 Door Sedan
  • Engine: L15BA (Turbo)
  • Chassis: FE - 4 Door Sedan DE4 - 4 Door Sedan

Notes

  • Does Not Fit : Honda Civic Hatchback Models (2022+)
BrandA'pexi
TypeCat-Back Exhaust
SKU164KH003
Weight30.0 lb
Make["Honda","Acura"]
Model["Civic","Integra"]
Material["gid://shopify/Metaobject/91049197865","gid://shopify/Metaobject/90679279913"]
Manufacturer Type["gid://shopify/Metaobject/90137755945"]

Shipping: Some items may qualify for free shipping with Local Pickup in store. All orders have a 2–3 business day processing time. Some orders may have extended shipping times based on current stock status — we'll confirm the lead time at order placement.

Returns: Accepted within 30 days of delivery for unused product in original packaging. Returns are subject to a 25% Restocking Fee. Special-order and custom-built items are final sale.

Warranty: All products carry the manufacturer's full warranty. Coverage is honored through PMD as your authorized dealer.

A tracking link is emailed automatically when your order ships. You can also log into your account at any time to view live order status.
Yes — we ship to most international destinations. Duties and taxes are calculated at checkout. Lead times vary by carrier and customs processing.
Inspect your shipment on delivery. If anything is damaged, photograph it before signing and contact us within 48 hours — we'll work with the carrier to resolve it at no cost to you.

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