Kline Innovation Valvetronic Exhaust System for 997 Porsche 911 GT3

$4,516.00$7,602.00

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Kline Innovation Valvetronic Exhaust System

Stainless steel is standard.

For 100 & 200 cell catted manifolds only

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SKU: KL-POR-997GT3-VALVE-RS Category: Vehicle: , , , Brand:
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Kline Innovation Valvetronic Exhaust System for 997 Porsche 911 GT3

By employing their standard formula, which includes F1 grade Inconel 625, tuned cross sections, and the perfect X pipe geometry, they succeeded in crafting an exhaust that not only delivers the ideal sound but is also lightweight, durable, and meets the highest performance expectations.

The Sound

  • Beginning with the manifolds, replacing the factory cats with their 100 cell or long tube Inconel headers significantly augments the sound. The gases are then routed through one of two channels. When the valve is closed, the gases flow through their harmonically tuned, internally ceramic-insulated wing silencers, eliminating unwanted drone during highway cruising. The gases then pass into the center muffler and finally through their signature 1D CLR x pipe, providing a very civilized car sound when desired. When the valve is open, the wing and center silencers are bypassed completely, allowing the gases to flow unrestricted through the exhaust system. The Kline 1D CLR X pipe’s geometry notably increases the exhaust pitch, culminating in a raucous yet beautiful, explosive roar without any obstruction to the gas transit. Inconel 625, the material used, also imparts a unique sound, further enhancing the inherent characteristic sound of the Kline system. Its sidewall is exceptionally thin, resonating to produce an even higher pitched scream at high revs.

Performance

  • The most significant performance improvement comes from replacing the catalysts in the factory headers. The Kline headers and full system are designed to work in sync with each other for maximum performance and sound. The Kline system and headers come in two options: 100 cpsi catalysts, which produce a maximum gain of 18 hp and 27nm, or racing long tube headers, yielding a maximum gain of 20hp and 31nm.

Stainless Steel

  • The exhaust manufacturing industry frequently uses 304-grade stainless steel due to its durability, thermal stability, cost-effectiveness, and ease of fabrication. However, its heaviness and limited tensile strength can prove to be disadvantages when incorporated into high-performance exhaust parts. The necessity for thicker walls with stainless steel might also adversely affect the exhaust sound.

Inconel

  • Noted for its durability and heat resilience, Inconel 625 is often used in the construction of essential components, such as high-performance jet engine exhaust turbine blades. It’s the material of choice for Formula One exhaust systems and respected hypercar projects, including the McLaren P1 and Aston Martin 177. Despite Inconel’s ability to endure temperatures exceeding 1000°C and its focus on a lightweight design, it poses unique challenges due to its intricate machinability and specialized welding requirements.

Carbon Fiber

  • The carbon fiber-reinforced polymer is known for its impressive strength-to-weight ratio and is highly coveted in sectors like automotive and aerospace. Incorporating it can lead to weight reduction and increased stiffness, thereby enhancing the vehicle’s overall performance.

Specifications

  • Cross Section:
    • Manifolds:
      • Primaries:51mm
      • Secondaries: 70mm
    • Rear Section:
      • Tapered 70mm into 63.5mm X-Pipe (valve open) 
      • 57mm into wing silencers (valve closed)
    • All cross sections have been selected for a balance of peak torque and power
    • Tips choice of 89 mm or 101mm
  • Materials:
    • Inconel 625:
      • Racing Manifolds: 2.3kg each
      • Wing Silencers: 4.6kg each
      • Center Silencer with Tips: 5.9kg each
      • Total Weight Manifold Back: 15.1kg
      • Total Weight Incl. Manifolds: 19.7kg (19.2kg Weight Saving)
    • 304 Grade Stainless Steel:
      • Catted Manifolds: 4kg each
      • Wing Silencers: 8.5kg each
      • Center Silencer with Tips: 10.5kg
      • Total Weight Manifold Back: 27.5kg
      • Total Weight Incl. Manifolds: 35.5kg

Applications

  • Porsche 911 GT3: 997.1 (2006-2008) – 3.6L Flat-6
  • Porsche 911 GT3: 997.2 (2010-2011) – 3.8L Flat-6

Notes

  • Although the manifolds and carbon fiber tips are distinctly featured in the images, it’s vital to clarify that these components are not included in the base package

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.

Kline Innovation Exhaust Boutique Trailer

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Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.
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