HKS LEGAMAX Premium VAG WRX S4 (MAIN)

This is the HKS LEGAMAX Premium cat-back exhaust system, specifically made for the Subaru WRX S4. If you're looking to give your WRX S4 a more aggressive sound and improved exhaust flow, this system is a solid choice. It replaces the factory mufflers and piping from the catalytic converter back, changing the character of your car's exhaust note.

HKS is well-known for its performance exhaust systems, and the LEGAMAX Premium line is designed to offer a balance between a sporty sound and street-friendly noise levels. The system is constructed from SUS304 stainless steel, which is strong and resists corrosion, ensuring it holds up well over time. The piping diameter is optimized for the WRX S4's engine to help reduce backpressure and allow the engine to breathe a bit easier, potentially leading to a more responsive feel. You can expect a deeper, more resonant tone compared to the stock exhaust, especially under acceleration, without it being overly loud or droney at cruising speeds. The polished finish on the stainless steel also adds a clean, performance-oriented look to the underside of your car.

When installing this cat-back system, you'll typically be bolting it up to the existing catalytic converter flange. It's designed as a direct replacement for the factory components, meaning no welding or cutting is usually required for installation. This makes for a cleaner and more straightforward process. You'll want to ensure you have the necessary hangers and clamps to properly support the new system. The result is an improved exhaust note and a more refined performance feel for your WRX S4.