Skunk2 MegaPower RR 17-20 Honda Civic Si Coupe Exhaust System

Decades of race engineering are incorporated into every part Skunk2 develops. Our MegaPower Double Barrel (DB) Exhaust system for the '17-'20 Honda Civic Si is no exception. All MegaPower exhaust systems are finely tuned using CNC Mandrel bends, precision robotic TIG-welds and unrestrictive resonators to maximize exhaust velocity and eliminate restriction. Featuring parallel, dual race mufflers mounted center beneath the bumper, this system emits that iconic, vicious Skunk2 exhaust note. New bolt-on exhaust hanger hardware is included for use with the OEM hangers to allow adjustment for exact positioning of the exhaust. Additionally, new exhaust flange gaskets, bolts, and nuts are also included to ensure the system is free of leaks.

Additional Information

MegaPower Exhaust; Double Barrel Exit; 3 in. Dia.; Incl. Dual Race Mufflers/High Flow Resonator/4 in. Tips;

These additional application notes are supplied by the manufacturer and collated from multiple year ranges. Not all of these notes may apply to every year or every variant. Please contact a StreetFX agent for clarification if required.

• Basic Welding And Fabrication Required
• Not A Bolt-On System
• T-304 Stainless Steel

Important Notice relating to US Domestic Market Trucks & Pickups

Many US-market trucks and pickups are available in multiple cab and bed-length configurations (e.g., Single Cab, Extended Cab, Double/Crew Cab, CrewMax, 5.5ft/6.5ft/8ft beds, etc.). Exhaust system fitment can vary between these chassis versions.

Where available, we list all compatible vehicles, cab types, and bed lengths in the product description. However, depending on your exact configuration, some systems may require optional extension/mid-pipes or minor modification for correct fitment.

Because of these variations, please carefully check your cab configuration and bed length before purchasing. If you are unsure, or if your vehicle has been modified, please reach out to a StreetFX agent.

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Product Details

Reference Information

Mega Power Double Barrel (DB) Exhaust - 2017-2020 Honda Civic Si Coupe 1.5L

Skunk2 Racing's Mega Power exhaust systems are designed to optimize engine airflow and volume through carefully selected, application-specific tubing lengths and diameters and increased wave scavenging effects for more horsepower. CNC mandrel bending allows for a constant tubing diameter throughout the bend, which results in precise fitment, as well as improved exhaust gas flow. Each system is fitted with a resonator, includes stainless steel flanges, and is finished off with a straight-through, low-restriction racing muffler for uninterrupted flow. Each fully polished muffler is mated to a polished tip with its own acid etched Mega Power badge and serialized nameplate. A removable silencer and all necessary hardware is also included. The Skunk2 Racing Mega Power exhaust systems offer top-notch performance, better build-quality and the ultimate sound. Order the exhaust system designed for your application needs.