The HKS Legal Muffler Catback Exhaust delivers an aggressive, sporty exhaust note that turns heads without turning your daily drive into a drone fest. Designed for enthusiasts who want power, sound, and style, this system will improve performance while maintaining street-friendly volume.

Fitment Information

• Honda Civic Si Sedan (2007, 2008) 

Emissions Compliance

• HKS exhaust systems maintain all emissions equipment intact without any alterations, replacements, or modifications.

Specs & Features

• Cat-Back Exhaust System – Replaces everything from the catalytic converter back for maximum exhaust flow

• 60mm-65mm Piping Diameter – Optimized diameter for improved flow and turbo spool

• Titanium Tips (120mm Diameter) – High-end look with a sleek, sporty finish

• Sporty Exhaust Tone – Aggressive sound that enhances performance without annoying drone

• Performance Gains – Increases exhaust flow, leading to better throttle response, power, and torque

• Reduced Backpressure – Helps lower backpressure for more horsepower and smoother engine performance

• Durable Coated Stainless Steel – Long-lasting, corrosion-resistant construction built to withstand the elements

• Lightweight Design – Weighs less than the factory exhaust for an improved power-to-weight ratio

• Easy Bolt-On Installation – Direct replacement for stock system with all hardware and gaskets included

• Distinctive Titanium Tip – Adds a premium, sporty aesthetic to your rear end
  

Product Description

The HKS Legal Muffler Catback Exhaust system was designed with enthusiasts in mind. Engineered to replace your stock exhaust from the catalytic converter back, it dramatically improves exhaust flow, helping to reduce backpressure and increase both horsepower and torque. That means better acceleration, more responsiveness, and the satisfaction of feeling your car come alive when you hit the gas.

The exhaust note is sporty and aggressive—just the right level of growl without being excessively loud. It’s perfect for those who want to make a statement without annoying the neighbors. Thanks to the 60mm-65mm piping diameter, this system offers a tuned exhaust flow that enhances turbocharged performance and engine efficiency.

Made with fully coated stainless steel, this catback is engineered to last. Not only is it resistant to corrosion, but it also maintains its polished finish through years of use. And with a lightweight design that’s lighter than the stock system, you’ll be able to feel the performance gains in every corner and straightaway.

Plus, the 120mm titanium tip adds that perfect finishing touch, giving your car a premium, motorsport-inspired look. This exhaust isn’t just about performance—it’s about making your car look and sound as good as it performs.