Fitment Information Honda Civic 1.5L Sedan (2016, 2017, 2018, 2019, 2020, 2021)  Emissions Compliance HKS exhaust systems maintain all emissions equipment intact without any alterations, replacements, or modifications. Specs & Features Tip Diameter: 3.0"  Center Pipe Diameter: 2.3" Close noise level Stock: 72 HKS: 79 Custom Tail Pipe Design: Tailpipes tailored to your vehicle, blending seamlessly while enhancing its appearance. Durable Stainless Steel Construction: Made of SUS304 stainless steel for a glossy finish and long-term durability. Titanium Tail Tips (On Select Models): Premium titanium tail tips for a distinct look on specific models. Optimized Tip for Each Vehicle Model: Tailpipe design carefully selected for balance and quality appearance. JASMA Approved: Meets strict JASMA standards for quality and performance. High-Quality SUS304 Material: Constructed with durable SUS304 stainless steel. Proven Advantex Glass Wool: Utilizes Advantex glass wool for quality and performance. Product Description HKS's Advanced Legamax enhances your vehicle with custom-designed stylish tips tailored to each model. Combining sporty performance with premium elegance, Legamax Premium mufflers are crafted from durable SUS304 stainless steel, boasting a sleek finish. Some models even feature trendy titanium tail tips for added flair. Each tip is meticulously selected to complement the car's design, ensuring a balanced, high-quality appearance. Legamax meets rigorous JASMA standards and incorporates Advantex glass wool for proven durability. Redline360 sells only genuine and authentic HKS products.