Product Description:

The Kline Innovation Full Sport Exhaust is the definitive performance and acoustic overhaul for Porsche’s 4.0-litre flat-six flagship models. While the GT4 RS and Spyder RS are celebrated for their induction noise, the factory exhaust note is often stifled by restrictive emissions hardware. Kline resolves this by replacing the entire exhaust path with a harmonically tuned system that delivers a high-pitched, exotic "Formula 1" scream.

Customisable Manifold Options

At the heart of the system are the performance manifolds, which can be tailored to your specific requirements for sound and power:

• Decat Manifolds: The ultimate "race-spec" choice, removing all restriction for maximum power gains and the loudest possible acoustic profile.

• 100-Cell Matrix: A high-flow motorsport solution that offers minimal backpressure while providing a foundational level of filtration.

• 200-Cell HJS Cats: The most popular choice for spirited road use, significantly increasing flow over the 600-cell factory units while maintaining a more refined tonal balance.

System Architecture & Thermal Management

• Over-Axle Side Pipes: To eliminate the restrictive Otto Particulate Filters (OPF), Kline utilizes specially designed side pipes. These incorporate small, high-frequency silencers to remove cabin drone while maintaining a crisp exhaust note.

• Optional Heat Shielding: For drivers who frequent the track, Kline offers professional-grade thermal heat shielding as an option for both the manifolds and the side pipes. This is highly recommended to protect the engine bay, rear suspension, and tyres from the immense heat generated by the 4.0L engine at 9,000 rpm.

• X-Pipe Rear Silencer: The system culminated in a lightweight rear silencer featuring a signature tight-radius X-pipe, crossing exhaust pulses to create Kline’s world-famous high-frequency "scream."

• Carbon Fibre Tips: Finished with F1-grade Pre-Preg Carbon Fibre tips, providing a technical aesthetic that perfectly complements the Weissach Package.

Material Innovation: Inconel 625 vs. Stainless Steel

• F1-Grade Inconel 625: The ultimate choice for RS models. This nickel-based superalloy allows for incredibly thin sidewalls, reducing total system weight by approximately 50% compared to stock while offering superior heat resistance and a sharper, more metallic acoustic edge.

• 304 Grade Stainless Steel: A robust and durable alternative that provides the signature Kline sound and significant weight savings over the bulky OEM chambered silencer.

Technical Specifications

• Compatibility: Porsche 718 Cayman GT4 RS and 718 Spyder RS (2022+).

• Valvetronic Control: Utilizes original Porsche vacuum actuators for dual-personality sound control (Stealth vs. Race).

• ECU Status: A remap or O2 sensor spacers are required when selecting Decat, 100-cell, or 200-cell options to prevent "Check Engine" lights.

Before installing your new tuning parts, please review and keep our Aftercare Guide for future reference - View Guide