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Bulletproof Automotive : Kline Innovation exhaust systems for the 458 & 458 Speciale

Discussion in '458 Italia/488/F8' started by Bulletproof Automotive, Mar 6, 2024.

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#1 Bulletproof Automotive, Mar 6, 2024
Bulletproof Automotive : Kline Innovation exhaust systems for the 458 & 458 Speciale

At Bulletproof Automotive, we are a top tier premium dealer for the spectacular Kline Innovations exhaust products. Design, quality, sound, and performance are second to none. I've listed all information below including thorough details in each of the quote boxes. We offer exclusive pricing for all Ferrarichat members. All pricing listed in this thread is MSRP. Please contact me directly via PM, email, or phone to receive your Ferrarichat member discount and discuss your purchase. We accept all major credit cards, PayPal, Zelle, wire transfer, and we offer financing via Affirm. Thank you!

-James
[email protected]
213.212.7649

KLINE VALVETRONIC EXHAUST SYSTEM FOR FERRARI 458 ITALIA

The Ferrari 458 has become the benchmark against which all modern supercars are compared. At Kline, they decided to build the ultimate exhaust system. Their usual criteria was to create an exhaust of unparalleled performance, sound, and lightness.

THE SOUND
At Kline, they perceived that the Factory exhaust for the 458 failed to capture the true magnificence of this remarkable supercar or unleash the full sonic potential of its 4.5-liter V8 engine. Beginning with a clean slate, their initial improvement involved substituting the 600cpsi catalysts with high-performance 100cpsi race catalysts, thereby minimizing gas drag coefficient, enhancing scavenging, and ultimately improving torque response and peak power output. To replace the heavy and inefficient factory silencers, they introduced their meticulously tuned silencers, which enriched both the bass and treble frequencies while significantly reducing weight. The final, and arguably one of the most crucial design elements, exclusive to Kline, was their signature tight radius laminar flow X-pipe. The resulting sound is astonishingly smooth during light driving conditions, transforming into an exuberantly spirited high-pitched roar when needed. When operating at low revs (valve closure), the gases pass through a chamber and an acoustic ceramic-filled silencer, with the cross-sections meticulously tuned to achieve optimal gas velocity and maximize torque. Under demanding loads and high revs, the valves open to unleash the engine’s full power potential.

STAINLESS STEEL
In the realm of exhaust manufacturing, the industry standard revolves around the use of 304-grade stainless steel. This grade offers a balanced combination of moderate strength, thermochemical stability, cost-effectiveness, and ease of production. It allows for the construction of exhaust systems that strike a practical balance between affordability and functionality, ensuring long-lasting durability. However, it’s worth noting that stainless steel is relatively heavier compared to alternative materials. Despite having a similar density to regular steel, it possesses slightly lower tensile strength. This limitation restricts the potential for creating high-performance exhaust components using stainless steel. Additionally, the thicker sidewalls required by stainless steel may result in a somewhat subdued and less vibrant exhaust note compared to other materials.

INCONEL
Inconel 625 is the ultimate choice for ensuring durability and heat resistance in the aerospace industry. This exceptional material finds extensive applications in the manufacturing of critical components, especially exhaust turbine blades for high-performance jet engines. Inconel is notably favored in Formula One exhaust systems and has been selected by manufacturers involved in prestigious hypercar projects like the McLaren P1 and Aston Martin 177. These applications greatly benefit from Inconel’s ability to withstand extreme temperatures exceeding 1000°C while prioritizing a lightweight design.

Inconel exhibits remarkable properties, including high tensile strength and excellent thermochemical stability. Its tensile strength is comparable to that of titanium, resulting in an outstanding strength-to-weight ratio. As a result, Inconel enables the use of thin sidewall materials while maintaining structural integrity, facilitating the production of lightweight components that demonstrate remarkable resistance to fatigue over extended periods. However, working with Inconel presents certain challenges due to its difficult machinability and specific welding requirements, which demand specialized skills and time-consuming techniques. Additionally, the unique properties and specialized manufacturing processes associated with Inconel contribute to its higher cost as a raw material.

CARBON FIBER
Carbon fiber reinforced polymer exhibits an exceptionally high tensile strength to weight ratio, surpassing that of any metal. Components with extremely low weight and high tensile strength can be molded into virtually any shape. By exclusively using aerospace and Formula 1 grade pre-preg carbon fiber, cured in an autoclave at high pressure and temperature, the company achieves the lightest and strongest carbon fiber suitable for the most extreme conditions.

HEAT SHIELD
For customers prioritizing effective heat management, the company offers a meticulously designed heat protection solution crafted from embossed stainless steel sheet. Skilled artisans carefully create and weld each heat shield to ensure optimal performance. Integrating these heat shields onto the manifolds allows for reduced heat soak and improved scavenging, resulting in enhanced overall performance and a cooler engine temperature.

CERAMIC COATING
Kline offers a solution for those who are concerned about heat-related issues. They have developed their own proprietary Zirconium ceramic coating process, designed to address this problem. By applying a ceramic layer to manifolds, Kline’s solution effectively reduces heat soak and improves scavenge, resulting in enhanced performance and a cooler engine.

THE SPECIFICS
Performance

100 CPSI Cat Version – 14hp Increase at 8500rpm / 26nm at 4100rpm

Racing Version – 22hp Increase at 8500rpm / 32nm at 4100rpm

Cross Sections

Catalyst / Racing Section Tubing – Dual 63.5mm OD (chosen for a balance of torque and peak power)

Silencer Section Tubing – Dual 63.5mm on Valve Open / Single 50mm on Valve Closed

63.5mm 1D CLR Laminar Flow X-Pipe

Catalysts, available in 100cpsi 124mm billet, HJS race catalysts, or racing variation for more aggressive sound, and ultimate performance.

Manifolds

Primaries – 45mm / 63.5mm Post Collector

Formula one grade true merge collectors.

Materials

Full Inconel 625 (formula one grade) – Valvetronic Silencer Section Weight 6kg / Racing Pipes 1.0kg Each / Catalyst Pipes 3.8kg Each

304 Stainless Steel – Valvetronic Silencer Section Weight 13kg / Racing Pipes 3.0kg / Catalyst Pipes 4.5kg

Click to expand...

Ferrari 458 Italia Valvetronic System - Stainless Steel : $4184 / Inconel 625 : $7147

Ferrari 458 Italia Muffler Heat Shield Option : $650

Ferrari 458 Italia 100cell Cat Pipe Set - Stainless Steel : $2891 / Inconel 625 : $3662

Ferrari 458 Italia 200cell Cat Pipe Set - Stainless Steel : $2967 / Inconel 625 : $3738

Ferrari 458 Italia Decat Pipe Set - Stainless Steel : $1725 / Inconel 625 : $2329

Ferrari 458 Italia Catalyst Heat Shield Option : $650

Ferrari 458 Italia Manifolds - Stainless Steel : $4782 / Inconel 625 : $7406

Ferrari 458 Italia Manifolds Heat Shield Option : $1400

Ferrari 458 Italia Carbon Fiber Tips : $1610

Ferrari 458 Wireless Button Kit : $569

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KLINE VALVETRONIC EXHAUST SYSTEM FOR FERRARI 458 SPECIALE

The Ferrari 458 has become the benchmark against which all modern supercars are compared, with the Speciale model standing as its highest performing variant. At Kline, the choice was made to construct the ultimate exhaust system. Their usual criteria entailed creating an exhaust system that excels in terms of performance, sound, and lightness, setting new standards in the industry.

THE SOUND
At Kline, a profound belief emerged that the Factory exhaust system for the Ferrari 458 Speciale failed to capture the true magnificence of this extraordinary supercar or unleash the full sonic potential of its 4.5-liter V8 engine.

Commencing from the drawing board, the primary focus was on upgrading the exhaust system. The initial step involved replacing the stock catalysts with high-performance 100cpsi race catalysts. This modification effectively reduced the gas drag coefficient, improved scavenging, and ultimately enhanced torque response and peak power figures. To further enhance the exhaust system, the heavy and cumbersome factory silencers, which were primarily built to meet cost requirements, were substituted with meticulously tuned silencers. These harmonically tuned silencers enriched both bass and treble frequencies, while significantly reducing weight.

The culmination of the design process resulted in a distinctive feature exclusive to Kline: the trademark tight radius laminar flow X-pipe. This innovation played a pivotal role in delivering exceptional sound characteristics. The resulting sound is incredibly smooth during light driving conditions and transforms into a howling, raucous, high-pitched incendiary vocal when the need arises.

When operating at low revs (valve closure), the gases are allowed to pass through a chamber and an acoustic ceramic-filled silencer, with the cross sections carefully tuned to achieve optimal gas velocity for maximum torque output. Under demanding loads and high revs, the valves open to unleash the engine’s full power potential, ensuring optimum performance.

STAINLESS STEEL
When it comes to exhaust manufacturing, the industry standard revolves around utilizing 304-grade stainless steel. This grade strikes a balance between moderate strength, thermochemical stability, cost-effectiveness, and ease of production. It enables the construction of exhaust systems that are both affordable and functional, ensuring long-lasting durability. However, it’s important to note that stainless steel is relatively heavier compared to alternative materials. Despite having a similar density to regular steel, it has slightly lower tensile strength, limiting its potential for high-performance exhaust components. Additionally, the thicker sidewalls required by stainless steel may result in a somewhat subdued and less vibrant exhaust note compared to other materials.

INCONEL
Inconel 625 is the ultimate choice for ensuring durability and heat resistance in the aerospace industry. This exceptional material finds extensive applications in manufacturing critical components, particularly exhaust turbine blades for high-performance jet engines. Inconel is highly favored in Formula One exhaust systems and has been selected for prestigious hypercar projects like the McLaren P1 and Aston Martin 177. These applications benefit greatly from Inconel’s ability to withstand extreme temperatures exceeding 1000°C while prioritizing a lightweight design.

Inconel exhibits remarkable properties, including high tensile strength and excellent thermochemical stability. Its tensile strength is comparable to that of titanium, resulting in an outstanding strength-to-weight ratio. Consequently, Inconel allows for the use of thin sidewall materials while maintaining structural integrity, facilitating the production of lightweight components that demonstrate exceptional resistance to fatigue over extended periods. However, working with Inconel presents challenges due to its difficult machinability and specific welding requirements, requiring specialized skills and time-consuming techniques. Additionally, Inconel’s unique properties and specialized manufacturing processes contribute to its higher cost as a raw material.

CARBON FIBER
Carbon fiber reinforced polymer demonstrates an exceptionally high tensile strength-to-weight ratio, surpassing that of any metal. It enables the production of components with extremely low weight and high tensile strength, which can be molded into almost any shape. By exclusively using aerospace and Formula 1 grade pre-preg carbon fiber, cured in an autoclave under high pressure and temperature, the company achieves the lightest and strongest carbon fiber suitable for the most extreme conditions.

HEAT SHIELD
For customers prioritizing effective heat management, the company offers meticulously designed heat protection solutions crafted from embossed stainless steel sheets. Skilled artisans carefully create and weld each heat shield to ensure optimal performance. Integrating these heat shields onto the manifolds reduces heat soak and improves scavenging, resulting in enhanced overall performance and a cooler engine temperature.

THE SPECIFICS
Cross Sections

Cross Sections in Pre Catalyst – 57mm OD (chosen specifically to keep lambda ranges in A/F stoichiometry)

Post Catalyst Cross Section – 63mm OD (into 1D CLR tight radius x-pipe)

Silencer Sections – 63mm OD Pre Silencer / 57mm OD Post Silencer (single chamber with acoustic fill section)

Materials
Standard 304 Grade Stainless Steel Weight

Silencers 6kg Each

Cat Section 6.1kg

Total 18.1kg

Inconel 625 Formula One Grade Exhaust Material Weight

Silencers 3.8kg Each

Cats 3.5kg

Total 11.1kg

Manifolds

2kg Each

Click to expand...

Ferrari 458 Speciale Valvetronic System - Stainless Steel : $4375 / Inconel 625 : $7472

Ferrari 458 Speciale Muffler Heat Shield Option : $650

Ferrari 458 Speciale 100cell Cat Pipe Set - Stainless Steel : $2891 / Inconel 625 : $3662

Ferrari 458 Speciale 200cell Cat Pipe Set - Stainless Steel : $2967 / Inconel 625 : $3738

Ferrari 458 Speciale Decat Pipe Set - Stainless Steel : $1725 / Inconel 625 : $2329

Ferrari 458 Speciale Catalyst Heat Shield Option : $650

Ferrari 458 Speciale Manifolds - Stainless Steel : $4782 / Inconel 625 : $7406

Ferrari 458 Speciale Manifolds Heat Shield Option : $1400

Ferrari 458 Speciale Carbon Fiber Tips : $1438

Ferrari 458 Wireless Button Kit : $569

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Bulletproof Automotive Karting
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#2 Bulletproof Automotive, Apr 3, 2024

All PM's replied to! Hope everyone is having a wonderful week!

-James
Bulletproof Automotive Karting
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#3 Bulletproof Automotive, May 2, 2024

All PM's replied to! Hope everyone is having a wonderful week!

-James
tubedreamer Rookie

Jan 13, 2022

44

#4 tubedreamer, May 4, 2024

Are there any options that would pass CA smog inspection? Or BAR approved? Speciale is just so underwhelming sounding compared to the Italia.
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#5 Bulletproof Automotive, May 6, 2024

tubedreamer said: ↑

Are there any options that would pass CA smog inspection? Or BAR approved? Speciale is just so underwhelming sounding compared to the Italia.
Click to expand...

You can typically get away with doing the rear valvetronic section without issue. It's not technically CARB approved, but all of the emissions equipment will remain intact. If you replace the cats with the high flow 200 cell option, as long as you utilize O2 sensor spacers or similar to avoid a CEL, you will still pass an OBDII scanned emission test.

-James
tubedreamer Rookie

Jan 13, 2022

44

#6 tubedreamer, May 11, 2024

Any examples of what the car would sound like with just catback or 200 cell? Most videos seem to be full catless

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#7 Bulletproof Automotive, May 13, 2024

tubedreamer said: ↑

Any examples of what the car would sound like with just catback or 200 cell? Most videos seem to be full catless
Click to expand...

I will reach out to Kline to see if they have any videos available of rear section only or high flow cats + rear section. I do not see any on their public YouTube page, but I have gotten shorter / unedited videos from them in the past with specific setups. Will update this thread if I'm able to get some for you.

-James
nmcclure Formula Junior
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Apr 13, 2014

452

TX

#8 nmcclure, May 13, 2024

I have the inconel catback only, and its loud. No way I would tolerate it with the addition of 200 cell.
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#9 Bulletproof Automotive, May 14, 2024

tubedreamer said: ↑

Any examples of what the car would sound like with just catback or 200 cell? Most videos seem to be full catless
Click to expand...

Here's a video that features the rear inconel section only. Stock manifolds and stock cats.
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#10 Bulletproof Automotive, Jun 18, 2024

All PM's replied to! Hope everyone is having a wonderful week!

-James
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#11 Bulletproof Automotive, Jul 23, 2024

All PM's replied to! Hope everyone is having a wonderful week!

-James
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#12 Bulletproof Automotive, Sep 10, 2024

All PM's replied to! Hope everyone is having a wonderful week!

-James
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#13 Bulletproof Automotive, Oct 15, 2024

All PM's replied to! Hope everyone is having a wonderful week!

-James
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#14 Bulletproof Automotive, Nov 26, 2024

All PM's replied to! Hope everyone is having a wonderful week!

-James
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#15 Bulletproof Automotive, Jan 22, 2025

All PM's replied to! Hope everyone is having a wonderful week!

-James
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#16 Bulletproof Automotive, Feb 25, 2025

All PM's replied to! Hope everyone is having a wonderful week!

-James
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#17 Bulletproof Automotive, Mar 27, 2025

All PM's replied to! Hope everyone is having a wonderful week!

-James
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#18 Bulletproof Automotive, May 15, 2025

All PM's replied to! Hope everyone is having a wonderful week!

-James
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#19 Bulletproof Automotive, Jul 1, 2025

All PM's replied to! Hope everyone is having a wonderful week!

-James

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