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Kline Innovation Valvetronic Exhaust System for 991 Porsche 911 GT3 & GT3 RS

Kline Innovation Valvetronic Exhaust System for 991 Porsche 911 GT3 & GT3 RS

Kline Innovation Valvetronic Exhaust System for 991.2 Porsche 911 GT3 (OPF) [KL-POR-991.3GT3-VALVE-RS-SS/KL-POR-991.3GT3-VALVE-RS-INC]

Price range: $5,600.00 through $8,235.00

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Kline Innovation offers a motorsport-grade exhaust system for the Porsche 911 991.2 GT3 / GT3 RS, engineered to deliver reduced weight, improved flow, and an authentic race-inspired sound with refined valve control.

Material

Clear

Manifold Options

Carbon Fiber Tip Options

Heat Shield Options

For 100 cell & 200 cell catted manifolds only

None

Catalyst section Heat Shield Option (inconel) (+$453.00)

Catalyst section Heat Shield Option (stainless steel) (+$453.00)

Complete Manifold Heat Shield (inconel) (+$1,268.00)

Complete Manifold Heat Shield (stainless steel) (+$1,268.00)

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SKU: N/A Categories: Exhaust, Exhaust Systems Vehicle: PORSCHE, Porsche 911, Porsche 911 GT3, Brand: Kline Innovation

This item and any similar items are not CARB approved and therefore not for sale in the state of California or other states that require CARB certification. No assessment is being made regarding this product's compliance with the EPA's anti tampering policy, only that the necessary testing and validation has not been completed. Please check with your local enforcement officials regarding legality of use in your place of residence.

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DESCRIPTION & INFO

Description

Additional Info

Shipping policy

BP PRICING DIFFERENCE

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Description

Kline Innovation Valvetronic Exhaust System for 991.2 Porsche 911 GT3 (OPF)

The Kline Innovation Exhaust System for the Porsche 991.2 GT3 is a high-performance valvetronic exhaust developed to give the naturally aspirated flat-six engine the race-inspired sound and performance it deserves. Drawing on the formidable heritage of the 911 GT3 platform with power output over 475 hp and a 9,000 rpm redline — Kline engineers apply their proven formula of F1-grade Inconel 625, tuned cross-sections, and optimized x-pipe geometry to deliver a system that is lightweight, durable, and sonically exhilarating. When the valves are closed the exhaust remains refined and comfortable with tuned silencers reducing unwanted drone, and when opened the system frees the exhaust flow for a dramatic, race-car-like scream that enhances the character of the GT3. Designed for precision fitment and uncompromising quality, this upgrade compliments the dynamic performance of the Porsche 911 991.2 GT3 while providing a transformative driving experience on both road and track

The Sound

The sound journey begins at the manifolds, where replacing the stock cats with 100-cell, or long-tube catless Inconel headers notably amplifies the sound. The gases then flow through one of two channels. When the valve is closed, the gases travel through harmonically tuned, internally ceramic insulated wing silencers, effectively removing unwanted drone during highway cruising, and into the center muffler, before reaching the trademark 1D CLR x pipe. This configuration ensures a very civilized sound when required.
When the valve is open, both the wing and center silencers are entirely bypassed, allowing the gases to move freely through the exhaust system. The distinctive geometry of the 1D CLR X pipe significantly elevates the pitch of the exhaust into a raucous yet harmonious, incendiary scream, without obstructing the gas flow. The Inconel 625 material also contributes a unique sound, further enhancing the natural sound of the exhaust system. The thin sidewall resonates to generate an even higher pitched scream at high revs.

Performance

The most significant performance boost comes from replacing the catalysts in the stock headers. The headers and full system are designed to work in harmony for optimal performance and sound. The system and headers are available in two options, 100 cpsi catalysts producing a maximum gain of 18 hp and 27nm, or racing long-tube headers offering a maximum gain of 24hp and 35nm.

Stainless Steel

Within the exhaust manufacturing industry, 304-grade stainless steel is commonly chosen due to its decent strength, thermochemical stability, cost-effectiveness, and fabrication convenience. Nonetheless, while stainless steel is fitting for constructing sturdy exhaust systems, it is denser than other materials. Its density mirrors that of standard steel, but its tensile strength is somewhat lacking, limiting its potential for high-performance exhaust parts. Also, the need for thicker walls in stainless steel might result in a more muted and less vibrant exhaust sound.

Inconel

Inconel 625 is held in high esteem within the aerospace industry for its robustness and heat resistance. It is prevalently used in the creation of vital parts, notably exhaust turbine blades for high-performance jet engines. Inconel is a favorite in Formula One exhaust systems and has been selected by manufacturers for elite hypercar projects, such as the McLaren P1 and Aston Martin 177. Capable of withstanding temperatures above 1000°C, Inconel prioritizes a lightweight design. However, Inconel poses unique challenges due to its difficult machinability and specific welding requirements, necessitating specialized skills and complex techniques.

Carbon Fiber

Carbon fiber reinforced polymer, which possesses a tensile strength-to-weight ratio that outperforms all metals, demonstrates exceptional properties. Its lightweight nature combined with remarkable strength makes it a favored material in various industries, including automotive and aerospace. Carbon fiber components contribute to weight reduction and provide improved rigidity, thereby enhancing overall vehicle dynamics.

Specifications

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:
  - 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
Cross Sections:
- All cross section have been selected for a balance of peak torque and power
Manifolds:
- Primaries: 51mm
- Secondaries: 70mm
Rear Section:
- Valve Open: Tapered 70mm Into 63.5mm X-Pipe
- Valve Closed: 57mm Into Wing Silencers

Applications

Porsche 911 GT3 | 991.2 | 2017-2019 | 4.0L Flat-6

Notes

It’s crucial to note that while the images prominently feature manifolds and carbon fiber tips, these components are not included in the standard 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.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

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.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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