SOUL Performance Competition / Street Exhaust Package with WEISSACH Tips for 982 Porsche 718 GT4 RS / Spyder RS

Development and Testing

• Porsche’s 718 GT4 RS pushed the mid-engine platform further than ever, but inevitable constraints still left sound character and performance on the table, which is where SOUL Performance exhaust solutions come in, engineered to unlock more from the GT3-derived 4.0L flat-six by optimizing every section of the system. To quantify what drivers could already feel, SOUL Performance partnered with M-Engineering at its Pompano Beach, Florida dyno facility and worked with Mickey Hernandez (Miami Miles) to test nearly every GT4 RS configuration, validating that larger-diameter tubing and a true 3-inch flow path deliver meaningful gains in real-world conditions. Across the lineup, each component contributed measurable improvements, and SOUL Performance packages amplified those results with stronger midrange torque and power while maintaining gains to redline, even with the high-flow catted option. For maximum sound and performance with street-friendly manners, the Performance Packages combine uncompromised Competition Headers (longer primaries, expanded merge collector, no factory cat restriction), free-flowing Over Axle Pipes in Competition or Sport form (replacing dense cat cores and particulate filters), and a Valved Exhaust that preserves the 3-inch path with oval tubing while shaping a smoother, higher-pitched tone through an X-pipe and minimizing drone and cabin presence in the closed-valve mode via Helmholtz-assisted secondary flow, delivering the complete RS-worthy mix of volume, quality, power, and cruising comfort.

Features

• Complete GT4 RS Performance Package, headers + OAPs + valved exhaust
• Unrestricted Competition Headers for improved flow and response
• Choice of free-flowing Over Axle Pipes (Competition or Sport)
• True 3-inch exhaust path for proven midrange-to-redline gains
• Valved, dual-mode sound with X-pipe tone and anti-drone control
• Heat management solution included with Over Axle Pipes

Applications

• Porsche 718 Cayman GT4 RS: 982C | 2022-2025 | MA2.75 – 4.0L F6
• Porsche 718 Spyder RS: 982 | 2024-2025 | MA2.75 – 4.0L F6

About SOUL Performance

SOUL Performance Products was founded by a group of automotive enthusiasts with deep industry experience and a commitment to doing right by their customers. Their mission is to deliver outstanding performance parts at fair pricing, backed by quality service and one of the best warranties in the industry. SOUL develops high-performance exhaust systems and components that are engineered for exceptional sound and proven performance, with products ready to ship quickly worldwide. Guided by core values of honesty, transparency, and passion for cars, they build strong community connections and prioritize customer satisfaction at every step. Operating out of a dedicated facility in Willow Grove, Pennsylvania, SOUL combines hands-on research, engineering, and manufacturing expertise to create parts that meet and exceed the demands of serious enthusiasts.