GReddy 12-15 Honda Civic Si Coupe 76mm Supreme SP Cat-Back Exhaust

What you get with this GReddy Supreme SP cat-back exhaust system is a well-built, 76mm diameter exhaust designed specifically for the 2012-2015 Honda Civic Si Coupe. This system replaces the factory exhaust from the catalytic converter back, aiming to improve exhaust flow and deliver a more aggressive sound profile.

The Supreme SP line from GReddy is known for its performance-oriented design. This cat-back features a large, 76mm (approximately 3-inch) piping diameter, which offers less restriction compared to the stock exhaust. This improved flow can contribute to a slight increase in horsepower and torque, especially when paired with other engine modifications. The system is constructed from durable stainless steel to resist corrosion and maintain its appearance over time. The muffler design is tuned to produce a deep, sporty tone that’s noticeable without being overly intrusive for daily driving, though it will certainly let people know you're coming.

Installation of a cat-back exhaust is typically a bolt-on affair, meaning no welding is required. You'll want to ensure you have the necessary tools to remove the old exhaust and install the new one securely. This GReddy system is designed to fit right onto your Civic Si Coupe, making it a popular choice for owners looking to enhance both the performance and the auditory experience of their car.