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For 2025 Honda Civic 1.5T Catless Downpipe

Original price was: $492.00.Current price is: $418.00.

Discount valid for 24 hours

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SKU: 25+ Honda Civic 1.5T Categories: , ,

Warranty service:3 years

Production cycle:10-15DAYS

Overview

High-Performance Catless Downpipe Upgrade (Stainless Steel)

For 2025 Honda Civic 1.5T

Performance Downpipe | Catless / Straight-Through Design | Maximum Exhaust Flow & Aggressive Turbo Spool | Premium 304 Stainless Steel

Unlock Maximum Exhaust Velocity, Aggressive Turbo Spools & Peak Horsepower for Your 11th-Gen Honda Civic.

Engineered specifically for the 2025 and newer Honda Civic models equipped with the 1.5T turbocharged engine, this high-performance catless downpipe removes the restrictive factory catalytic converter entirely. By utilizing straight-through 304 stainless steel tubing, smooth mandrel bends, and optimized piping diameters, it drastically reduces backpressure to allow the 1.5T engine to breathe completely unrestricted.

Crafted for Enthusiasts Who Demand Maximum Gains Built for track-focused builds and enthusiasts chasing peak power, this downpipe optimizes exhaust scavenging for maximum turbo efficiency and sharper throttle response. Crafted from premium stainless steel, it guarantees superior heat tolerance and structural durability under high-boost conditions. (Note: Off-road or track use recommended; ECU tuning may be required to clear CEL).

DETAIL

🔥 Key Feature

Unrestricted Catless Design

Completely eliminates the restrictive factory catalytic converter to achieve maximum possible exhaust flow and turbine efficiency.

Drastic Reduction in Backpressure

Significantly minimizes exhaust restriction, resulting in lightning-fast turbo spool-up, improved throttle response, and noticeable horsepower and torque gains.

Aggressive Exhaust & Turbo Spool Note

Amplifies the signature 1.5T turbo spool sound and delivers a deeper, race-inspired exhaust tone under hard acceleration.

Precision TIG Welded Construction

Expertly TIG-welded throughout to guarantee superior structural integrity, leak-free performance, and a smooth interior wall surface for uninterrupted airflow.

Direct Bolt-On Fitment

Engineered precisely to match factory turbo flanges, bracket locations, and $O_2$ sensor bungs for a straightforward installation without custom fabrication.

spec
Fitment: Honda Civic 1.5T
Engine:1.5L Turbocharged Inline-4 (1.5T)
System Type:Catless Downpipe / Straight-Through Downpipe
Welding:Precision TIG Welded
Material:SUS304 Stainless Steel
Installation: Direct Bolt-On
Warranty: 3 Years
COMPANY VIDEO

We are a 15-year-old factory specializing in manufacturing high-quality automobile exhaust systems and accessories. Our product range includes exhaust manifolds, downpipes, cat-back exhausts, mufflers, electronic valves, exhaust tips, and other auto parts.

Why Choose Our Exhaust Systems?

☆ Perfect Fit: Manufactured according to the original car’s mounting holes, ensuring 100% installation compatibility.
☆ Experience & Expertise: With over 13 years in exhaust production and sales, we have molds for the most popular models, widely praised by our customers.
☆ Advanced Mufflers: Our factory-developed mufflers provide a silencing effect close to the original exhaust, delivering a comfortable driving experience.
☆ Electronic Valve Control: Equipped with our latest electronically controlled valves, allowing you to adjust the exhaust sound freely.
☆ Reliable Production & Delivery: Independently produced in our factory, with 100% order fulfillment and guaranteed delivery times.
☆ Customized Services: We offer tailored exhaust solutions for various car models according to your needs.

Our Expertise

For 15 years, we have specialized in manufacturing, producing, and selling automobile exhaust systems, with thousands of original exhaust models in our database. Our coverage includes brands such as:

Porsche | BMW | Mercedes-Benz | Audi | McLaren | Ferrari | Mitsubishi | Lamborghini | Bentley | Subaru | Aston Martin | Toyota | Volkswagen | Cadillac | Camaro | Dodge | Jaguar | Nissan | Alfa Romeo | Maserati

If you have a specific model and custom requirements, click here to inquire and contact us. We will provide professional solutions tailored to your vehicle.

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faq

  • What vehicles is this catback exhaust system compatible with?

    This catback exhaust system is specifically designed for BMW M340i (G20 chassis, 2019+) and BMW M440i (G22 chassis, 2021+) models equipped with the 3.0T B58 engine. It is not compatible with non-M340i/M440i 3 Series (G20) or 4 Series (G22) variants, or models with different engine configurations.

  • What does “catback” mean, and how is it different from other exhaust systems?

    This catback exhaust system is specifically designed for BMW M340i (G20 chassis, 2019+) and BMW M440i (G22 chassis, 2021+) models equipped with the 3.0T B58 engine. It is not compatible with non-M340i/M440i 3 Series (G20) or 4 Series (G22) variants, or models with different engine configurations.

  • What performance benefits will I gain from installing this catback exhaust?

    This catback exhaust system is specifically designed for BMW M340i (G20 chassis, 2019+) and BMW M440i (G22 chassis, 2021+) models equipped with the 3.0T B58 engine. It is not compatible with non-M340i/M440i 3 Series (G20) or 4 Series (G22) variants, or models with different engine configurations.

  • Is this exhaust system street-legal? Does it comply with emissions laws?

    This catback exhaust system is specifically designed for BMW M340i (G20 chassis, 2019+) and BMW M440i (G22 chassis, 2021+) models equipped with the 3.0T B58 engine. It is not compatible with non-M340i/M440i 3 Series (G20) or 4 Series (G22) variants, or models with different engine configurations.

  • Can I install this exhaust myself, or do I need a professional?

    This catback exhaust system is specifically designed for BMW M340i (G20 chassis, 2019+) and BMW M440i (G22 chassis, 2021+) models equipped with the 3.0T B58 engine. It is not compatible with non-M340i/M440i 3 Series (G20) or 4 Series (G22) variants, or models with different engine configurations.

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