Discover the perfect blend of performance and acoustics with the Supreme SP exhaust, tailored for the Subaru STI Sedan. This system not only features significantly enlarged piping, resonators, and mufflers for optimal flow but also meticulously refines the layout to balance performance enhancement with effective sound suppression.

Product Details:

• Product: GReddy Supreme SP Cat-Back Exhaust
• Construction: Durable 304 Stainless Steel
• Compatibility: Subaru WRX STI Sedan
• Applicable Years: 2011-2014

Exhaust Configuration and Benefits:

• Begins with a robust 3-inch mid-pipe featuring a large straight-through resonator that eliminates drone for a comfortable driving experience.
• Seamless transition to dual 2.5-inch diameter piping enhances exhaust flow for improved performance.
• Features dual GReddy straight-through mufflers ending in dual, double-wall tips on each, providing a sound that's powerful without being intrusive.
• The dual mufflers and staggered tips are designed to complement the GV-chassis’ aesthetics, providing a sleek, integrated appearance.

Quality Assurance and Warranty:

• Expertly hand-welded for longevity and resilience, ensuring the exhaust system's endurance.
• Each Supreme SP system comes with GReddy’s Limited Lifetime Warranty, reflecting our confidence in the product's superior quality.

Installation and Specifications:

• Includes a four-piece set complete with dual 2.5" and a single 3" oval gaskets, facilitating a straightforward installation process.
• The design supports both WRX and STI Sedan models, broadening its appeal among Subaru owners.

Performance Metrics:

• Weight details to be announced, ensuring the system's performance benefits are not offset by excessive heaviness.
• Sound levels measured at L89 & R91 dB(a) @4000RPM, delivering a resonant, performance-oriented exhaust note.

Additional Notes:

• Customers are advised to reuse the factory doughnut-gasket and hardware for the mid-pipe, aiding in the ease of installation.

By integrating the GReddy Supreme SP exhaust into your Subaru STI Sedan, you commit to an advanced level of performance engineering. Experience a sound that's as commanding as it is refined, matched with an aesthetic that seamlessly blends with your vehicle's design.