Untd. Performance Catted Downpipe – Porsche Cayenne Turbo S E-Hybrid / Cayenne Turbo S E-Hybrid 4.0L

Unleash refined power and sound from your Porsche Cayenne Turbo or Turbo S E-Hybrid with the Untd. Performance Catted Downpipe, precision-engineered for the 4.0L twin-turbo V8. Designed to optimize exhaust flow while maintaining emissions-conscious performance, this high-flow downpipe features a motorsport-grade catalytic converter that enhances turbo response, improves overall power delivery, and deepens the exhaust tone—all while supporting the unique demands of Porsche’s hybrid powertrain.

Key Features:

High-Flow Catted Design
Featuring a premium 200-cell high-flow catalytic converter, this downpipe reduces backpressure while remaining more emissions-friendly than a fully catless setup. Ideal for performance-focused drivers who want gains in power and response without excessive emissions or exhaust harshness.

Enhanced Turbo Efficiency & Spool
By replacing the restrictive factory downpipe, the Untd. Performance unit allows exhaust gases to exit more freely—improving turbo spool time, reducing lag, and delivering stronger mid-range torque and top-end horsepower. When paired with tuning, expect dramatic improvements in responsiveness and power under load.

Aggressive Yet Refined Exhaust Note
This downpipe unlocks a deeper, more resonant tone from the twin-turbo V8 without overwhelming cabin comfort. The sound is aggressive under throttle, with a richer low-end growl and more pronounced turbo presence—perfectly suiting the Cayenne’s dual personality as a luxury SUV and performance machine.

Built to Withstand Heat & Hybrid Demands
The hybrid Cayenne’s powertrain generates high levels of thermal load, especially under spirited driving. That’s why this downpipe is built from TIG-welded 304 stainless steel, with CNC-machined flanges and reinforced construction for long-term durability in high-performance hybrid environments.

Direct Bolt-On Fitment
Designed for seamless integration with the factory turbochargers and exhaust system, this downpipe installs with minimal modification and retains all necessary mounting points. Compatible with stock or aftermarket exhausts for flexible performance upgrades.

Compatibility:

• Porsche Cayenne Turbo 4.0L V8 (2018+)

• Porsche Cayenne Turbo S E-Hybrid 4.0L V8 + Hybrid Drive (2019+)

• Compatible with both standard and coupe body styles

Whether you’re looking to improve performance on the street or preparing your Cayenne for track or dyno tuning, the Untd. Performance Catted Downpipe offers the perfect balance of flow, sound, and street-oriented compliance.

⚠️ Note: While featuring a high-flow catalytic converter, this product may not be emissions-compliant in all regions. Please verify your local laws before installation.