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KLINE INNOVATION VALVETRONIC EXHAUST SYSTEM FOR 982 PORSCHE 718 GT4 RS [KL-POR-718GT4RS-VALVE-RS]

Name: KLINE INNOVATION VALVETRONIC EXHAUST SYSTEM FOR 982 PORSCHE 718 GT4 RS [KL-POR-718GT4RS-VALVE-RS]
SKU: 25832
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Kline Innovation

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Kline Innovation Valvetronic Exhaust System for 982 Porsche 718 GT4 RS

Kline Innovation presents the Porsche 718 GT4 RS: a masterpiece of track-oriented engineering. With its 500 hp flat-six engine, this vehicle boasts an exceptional power-to-weight ratio, delivering blistering lap times. How could this epic automobile be further refined? By adding lightness, enhancing the sound, and elevating performance to new heights.

The Sound

Kline Innovation enhances the Porsche 718 GT4 RS by removing the heavy chambered rear silencer and replacing it with a lightweight, F1-grade Inconel 625 X-pipe and fully bypassable Inconel silencers. This transformation significantly reduces weight and elevates the exhaust pitch into a more exotic tonal range. By eliminating the OPF and catalysts and opting for either HJS motorsport catalysts or de-cat pipes, the sound is fully opened, amplifying the high-pitched silencer section into a striking exotic scream. Kline Innovation’s rear valvetronic setup enables a versatile experience: the car can be driven in stealth mode with valves closed, or unleash a raw, unhindered sound with valves open. The addition of expertly crafted, F1-grade Pre-Preg carbon fiber exhaust tips perfectly complements this enhanced exhaust system.

Performance

Kline Innovation enhances performance by replacing the OPF with a specially designed silencer, effectively removing the most restrictive component without introducing the unwanted drone typically associated with OPF removal. Upgrading the stock catalysts to 100-cell HJS motorsport catalysts or decat pipes, along with adjusting the subsequent air-fuel ratios, can deliver gains of up to 20 hp.

Stainless Steel

The exhaust manufacturing industry often opts for 304-grade stainless steel, admired for its strength, thermal stability, cost-effectiveness, and ease of workability. However, its hefty weight and limited tensile strength can prove to be a disadvantage when integrated into high-performance exhaust components. Moreover, the necessity for thicker walls may negatively impact the exhaust’s sound.

Inconel

In contrast, Inconel 625 is highly regarded for its sturdiness and heat resistance. This material, often employed in constructing key components like high-performance jet engine exhaust turbine blades, is the preferred choice for Formula One exhaust systems and esteemed hypercar projects such as the McLaren P1 and Aston Martin 177. Despite its ability to endure temperatures exceeding 1000°C and its commitment to a lightweight design, Inconel brings unique challenges due to its intricate machinability and specialized welding requirements.

Carbon Fiber

Finally, the carbon fiber-reinforced polymer, known for its impressive strength-to-weight ratio, is highly sought-after in sectors like automotive and aerospace. Its incorporation can result in weight reduction and increased stiffness, ultimately enhancing the vehicle’s overall performance.

Specifications

Cross Sections:
- X pipe diameter: 63.5m
- Silencer transit: 50mm
- Catalyst pipe diameter: 63.5mm
- Catalyst overall cross section: 122mm
- Manifold primaries: 45mm
- Manifold Secondary: 63.5mm
Rear Silencer Section:
- 304 grade stainless:
  - Weight: 3.5kg
- F1 grade Inconel 625 superalloy:
  - Weight: 7.9kg
Over Axle Pipes:
- F1 grade Inconel 625 superalloy:
  - Weight: 4.40 kg
- Available in 304 grade stainless
Catalysts Manifolds:
- F1 grade Inconel 625 superalloy:
  - Weight: 3.2kg each
- 200 cell catalysts manifolds
- Available in 304 grade stainless
Materials:
- Rear Silencer Section:
  - 304 Grade Stainless Steel: 16kg
  - F1 Grade Inconel 625 Superalloy: 9kg (light)
- 100 / 200 Cell Manifolds:
  - 304 Grade Stainless Steel
  - F1 Grade Inconel 625 Superalloy: 4kg Each (light)
- Racing Long Tube Manifolds:
  - 304 Grade Stainless Steel
  - F1 Grade Inconel 625 Superalloy (light)
- Stainless steel tips are included in price while carbon fiber tips are an upgrade

Applications

Porsche 718 GT4 RS: 982 | 2019-present | 4.0L Flat-6

Frequently Asked Questions

What car does this exhaust system fit? The Kline Innovation Valvetronic Exhaust System is designed specifically for the Porsche 718 GT4 RS, 982 chassis (2019–present), powered by the 4.0L flat-six producing 500hp.
What materials are available, and how much weight do they save? Choose between 304-grade stainless steel or F1-grade Inconel 625 for the rear silencer section, over-axle pipes, and catalyst manifolds. The rear silencer alone drops from 16kg in stainless to just 9kg in Inconel. Inconel 625, used in Formula One exhaust systems and hypercar projects like the McLaren P1 and Aston Martin 177, withstands temperatures over 1000°C while prioritizing a lightweight build, though it costs more due to its complex machining and welding requirements. Stainless steel remains the more affordable, easier-to-fabricate option, though its thicker walls can slightly dampen the exhaust sound.
Are side pipes, manifolds, and carbon fiber tips included in the standard package? No. Stainless steel tips are standard and included in the price, but carbon fiber tips are an upgrade. Side pipes and manifolds are also sold separately and must be selected individually.
How much power can this system add? Upgrading the stock catalysts to 100-cell HJS motorsport catalysts or decat pipes, combined with adjusting air-fuel ratios, can deliver gains of up to 20hp.
How does the valvetronic function work? With the valves closed, the car can be driven in stealth mode with minimal noise. With the valves open, the OPF and catalysts are bypassed for a fully unhindered path through the F1-grade Inconel X-pipe and silencers, producing a striking, high-pitched exotic scream.

About Kline Innovation

At Kline, exhaust design is approached with utmost seriousness. The company adopts a no-compromise stance when it comes to delivering a product that meets the highest standards and satisfies customers’ expectations. Kline offers a comprehensive original equipment design and manufacturing service. Starting from provided drawings or design briefs, the team utilizes advanced 3D modeling techniques to create final designs. They also provide valuable consultation during the process and are capable of manufacturing tooling and fixtures for production, as well as handling final production runs, particularly catering to low to medium volume needs. Kline’s commitment to excellence ensures that customers receive a top-quality product without any compromises.

Development

All projects at Kline are executed entirely in-house, utilizing a diverse range of processes. These internal capabilities include laser scanning, CNC laser cutting, CNC mandrel bending, tubing and silencer manufacturing, CNC welding, pressings, CNC milling, mold manufacturing, and autoclave carbon fiber production. Notable automotive clients, such as W Motors with their Fenyr Supersport, Corbellati Missile, and RUF Automobil, have recently collaborated with Kline.
Kline has expanded its design and manufacturing process by incorporating laser scanning capabilities. This valuable addition enables the team to achieve enhanced precision in both design and quality control, resulting in an exceptional end product for customers. The adoption of laser scanning technology at Kline showcases the company’s unwavering dedication to delivering superior outcomes.

material	Inconel, Stainless Steel

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Please review the product dimensions carefully to ensure the right fit for your space
Color may vary slightly due to lighting and screen settings
Materials and finishes are selected for both durability and visual appeal
Some items may require simple assembly upon delivery
Perfect for both everyday use and long-term comfort

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Product Size Guide

Please refer to the general size reference below to better understand how this product may fit into your space. Dimensions may vary slightly depending on the design and materials.

Category	Small	Medium	Large
Decor & Accessories	Up to 10″	10″ – 20″	20″+
Tables	Up to 30″	30″ – 60″	60″+
Seating	1 Seater	2–3 Seater	4+ Seater
Storage Units	Compact	Standard	Large Capacity
Lighting	Small Fixture	Standard Fixture	Large Fixture

Note: For exact product dimensions, please refer to the specifications section above. This guide is intended as a general reference only.

KLINE INNOVATION VALVETRONIC EXHAUST SYSTEM FOR 982 PORSCHE 718 GT4 RS [KL-POR-718GT4RS-VALVE-RS]

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KLINE INNOVATION VALVETRONIC EXHAUST SYSTEM FOR 982 PORSCHE 718 GT4 RS [KL-POR-718GT4RS-VALVE-RS]