MegaPower RR 76mm Cat-Back Exhaust System

The Skunk2 MegaPower RR Exhaust system is engineered to be a critical component for enhancing engine performance in the 2006-2011 Honda Civic Si Coupe. This 76mm cat-back system is the result of over 15 years of racing development and is dyno-proven to deliver maximum horsepower gains. This design not only allows the engine to breathe more efficiently but also produces a significantly louder exhaust note compared to other MegaPower systems. It incorporates Japanese-spec, Super N1 styling, with application-specific tubing lengths and diameters to optimize airflow, volume, and scavenging effects for increased horsepower. Key features include a resonator, stainless steel flanges, and a straight-through, low-restriction racing muffler for uninterrupted flow. The fully polished muffler is complemented by a 110mm polished tip with an acid-etched MegaPower badge and a serialized nameplate. A removable silencer and all necessary hardware are included for installation. While designed as a factory bolt-on, some notes indicate that modifications to factory equipment may be required for proper installation, and it may be compatible with other trim levels with basic welding and fabrication. Fitment is specifically for the 2006-2011 Honda Civic Si Coupe. The product page emphasizes checking full vehicle fitment, and while the listed items are for specific Si Coupe models, it notes compatibility with other trims may require fabrication.