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 gradation appearance.

Bolt-On	Yes
Part Number	FE1 / DE4- 164KH003
Year	2022+
Make	Honda
Model	Civic Si Sedan FE1 Integra Sedan DE4
Body Style	FE1 – 4 Door Sedan DE4 – 4 Door Sedan
Engine	L15BA (Turbo)
Chassis	FE – 4 Door Sedan DE4 – 4 Door Sedan
Exhaust Type	N1 Evolution Extreme Muffler (N1-X)
Piping Diameter	3inch to 2.5inch
Tip Diameter	105mm. x 2
Pieces	3
Exhaust Tip Style	Titanium Round- Dual wall rolled, Angle cut (Riveted)
Piping Material	SUS304 Stainless Steel
Muffler Material	SUS304 Stainless Steel
Muffler Tip Material	Titanium
	WARNING: California Prop 65 Cancer & Reproductive Harm www.p65warnings.ca.gov