GReddy Supreme SP Cat Back Exhaust

2009–2014 Subaru Impreza WRX STI Hatchback 2.5L Turbo

Part #: 10168200

Overview

The GReddy Supreme SP Cat Back Exhaust is a high-performance exhaust system designed specifically for the Subaru STI hatchback models from 2009 to 2014 equipped with the 2.5L turbocharged engine. Crafted to enhance both the sound and performance of your vehicle, this exhaust system offers a perfect balance of aggressive tone and refined craftsmanship. Whether you're a spirited driver seeking improved throttle response or an enthusiast looking to upgrade your vehicle's exhaust note, the Supreme SP delivers on all fronts.

Built with quality and precision, this exhaust system is ideal for those who want to maximize their Subaru's potential while maintaining a sleek, sporty appearance. The system's design helps support increased horsepower and torque, making it a popular choice among Subaru enthusiasts and performance aficionados alike.

Key Features

The GReddy Supreme SP Cat Back Exhaust features several innovative design elements and high-quality materials that set it apart from standard exhaust systems:

• Large 3-inch diameter piping ensures optimal exhaust flow, reducing backpressure and supporting power gains.
• A horizontally mounted, three-section muffler with a "tucked-away" layout provides a compact, performance-oriented design that fits seamlessly under your vehicle.
• The routing allows for smooth entry of exhaust gases into the muffler's center section, promoting efficient flow and sound tuning.
• Dual 2.5-inch diameter piping exits on each side of the muffler, leading to quad staggered 3.5-inch GReddy double-wall slash cut tips, enhancing the aggressive aesthetic and exhaust note.
• The non-tapered 3-inch mid-pipe encases a large resonator section designed to significantly reduce drone, ensuring a comfortable driving experience during daily commutes.
• Handcrafted construction with meticulous TIG welding guarantees durability and a high-quality finish that withstands the rigors of performance driving.
• Designed with a focus on both performance and sound, the Supreme SP system provides a deep, sporty exhaust tone without excessive noise or drone.

Construction & Design

The Supreme SP Cat Back Exhaust is constructed from high-grade stainless steel, ensuring corrosion resistance and longevity. Its mandrel-bent tubing maintains consistent diameter throughout, minimizing turbulence and maximizing exhaust flow. The three-section muffler features a sleek, horizontally mounted design that not only enhances the aesthetic appeal but also optimizes sound tuning. The large resonator within the mid-pipe effectively cancels out unwanted drone frequencies, making it suitable for daily driving as well as spirited runs. Each component is precisely TIG-welded for strength and a clean appearance, reflecting GReddy's commitment to quality craftsmanship.

Installation & Fitment

The GReddy Supreme SP Cat Back Exhaust is a bolt-on upgrade that directly replaces the factory exhaust system. It uses OEM mounting points and requires no cutting or welding for installation. The system includes all necessary clamps and hardware, making it a straightforward upgrade for those with basic mechanical skills. A professional installation is recommended to ensure proper fitment and sealing, but no additional modifications or tuning are typically required.

What's Included

• Complete exhaust system with large 3-inch piping
• Three-section muffler with integrated resonator
• Quad 3.5-inch GReddy double-wall slash cut tips
• All necessary clamps and hardware
• Installation instructions

Ideal For

• Subaru STI owners seeking increased performance and a sportier exhaust tone
• Enthusiasts wanting to reduce drone and improve exhaust flow
• Drivers looking for a high-quality, durable exhaust upgrade with a sleek appearance