![A'PEXi - N1 Evo Extreme (Catback) - 2017-2021 Honda Civic Si [FC1/FC3]](http://pmddriven.com/cdn/shop/files/civicsicbe_a48ba232-6d80-452e-b5cf-49d71d83bb4f.jpg?v=1744129732&width=1200)
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.
| Brand | A'pexi |
|---|---|
| Type | Cat-Back Exhaust |
| SKU | 164KH002 |
| Weight | 30.0 lb |
| Make | ["Honda"] |
| Model | ["Civic"] |
| 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.
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