A'PEXi - N1 Evo Extreme (Catback) - 2023+ Honda Civic Type-R [FL5]

The N1 Evolution Extreme is based on the proven performance basics of the N1 muffler which emphasizes optimum exhaust efficiency utilizing a straight-thru layout design. Equipped with an internal hybrid silencer uniting power and free flowing characteristics with effective functional sound resonance. A newly adopted muffler tip completes the tail end of the exhaust that serves both purposes of function and form. Constructed with a light weight titanium material rolled and riveted onto a double pipe structure which acts as a diffuser enabling temperature reduction, meanwhile retaining a sporty heat gradiation appearance.
PRODUCT FEATURES:
- High-level of quality using tig-welded SUS304 stainless steel uniting quiet performance with high-power performance gains
- Matched and manufactured for select chassis
- Patented Megaphone piping structure to produce excellent torque and throttle response throughout the powerband. This piping design allows for a swirling exhaust gas flow effect that has for years produced proven results.
| Bolt-On | Yes | ||||
|---|---|---|---|---|---|
| Part Number |
| ||||
| Year | 2023+ | ||||
| Make | Honda | ||||
| Model | Civic Type-R | ||||
| Body Style | 5-Door Hatchback | ||||
| Engine | K20C | ||||
| Chassis | FL5 | ||||
| Exhaust Type | N1 Evolution Extreme Muffler (N1-X) | ||||
| Piping Diameter | 75mm piping to 75mm (valve side) and 61mm (non-valve side) | ||||
| Tip Diameter | 123mm. x 2 | ||||
| Pieces | 5 | ||||
| Exhaust Tip Style | Titanium Round- Dual wall rolled, Angle cut (Riveted) | ||||
| Piping Material | SUS304 Stainless Steel | ||||
| Muffler Material | SUS304 Stainless Steel | ||||
| Muffler Tip Material | TP270 Titanium | ||||
| Weight Data | 164-KH03 (N1-X): 42.70 lbs (Stock: 47.51 lbs) 145-H003 (GT Frontpipe): 7.38 lbs (Stock: 10.14 lbs) | ||||
| Valve | OE Valve functions with electronic valve system with factory OEM module | ||||
| Notes | ***Optional Frontpipe Sold Separately (Part No. 145-H003) Before completing the installation of the exhaust system with the factory OEM Valve Motor System, follow these steps:
Following these steps ensures proper installation and functionality of the exhaust system with the Valve Motor System. ***NOTE: Do not use harsh car wash soap or metal polish cleaners when cleaning titanium tips. We recommend using 70% isopropyl alcohol with a microfiber towel to clean the titanium tips.*** | ||||
| Gasket Replacement | - Front Section (To Frontpipe/Overpipe) x1 - PCD90-95 x D65.5: 3901-1761 - Midpipe Section x2 - P106 x D75 : 3901-1770 | ||||
![]() | WARNING: California Prop 65 Cancer & Reproductive Harm www.p65warnings.ca.gov |
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