How much weight does the Kline Innovation exhaust remove from the Lamborghini Revuelto?

The Inconel 625 valvetronic rear system weighs 9.65kg, a reduction of 11.25kg over the factory unit. Adding the optional Inconel race downpipes at 2.15kg each brings the total weight reduction over stock to 25kg. Stainless steel weight data is not yet available.

What is the difference between valve open and valve closed on the Kline Innovation Revuelto exhaust?

On valve open, exhaust gases pass through a tapered 76mm into 70mm X-pipe for unrestricted flow and a sharper, more aggressive tone. On valve closed, flow routes through a 50mm line into the silencer, significantly reducing volume for street driving. This dual-mode behavior is built into the valvetronic system without requiring any external controller.

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Description

Kline Innovation Valvetronic Exhaust System for LB744 Lamborghini Revuelto

The Lamborghini Revuelto’s naturally aspirated 6.5-liter V12 is already one of the last of its kind, but the factory exhaust keeps it sounding tamer than the engine deserves. The Kline Innovation Valvetronic Exhaust System for the Lamborghini Revuelto addresses that directly, starting with an Inconel 625 construction that cuts 11.25kg from the rear section alone; add the optional race downpipes at 2.15kg each and total weight reduction over stock reaches 25kg. Kline developed the cross sections specifically for a balance of peak torque and peak power, not just one or the other. On valve open, the rear section runs a tapered 76mm into 70mm X-pipe for unrestricted flow and a sharper tonal character; on valve closed, exhaust routes through a 50mm line into the silencer, keeping the car livable on the street without compromising what happens when the valves open up. The result is a soundtrack that fits the Revuelto’s hybrid V12 platform rather than fighting it.

Materials

Stainless Steel: 304-grade stainless steel is the industry standard for exhaust manufacturing, offering a practical balance of properties for most applications.
- Moderate strength and thermochemical stability
- Cost-effective and straightforward to manufacture
- Delivers solid functionality and durability at a lower price point
- Heavier than alternative materials, with density comparable to regular steel
- Slightly lower tensile strength, which limits its potential in high-performance applications
- Thicker sidewalls can result in a less vibrant exhaust note compared to Inconel or titanium
Inconel: Inconel 625 is the material of choice for the most demanding exhaust applications, from aerospace to motorsport.
- Used in jet engine exhaust turbine blades and critical aerospace components
- The preferred material for Formula One exhaust systems
- Selected for hypercar projects including the McLaren P1 and Aston Martin 177
- Withstands temperatures exceeding 1000°C while keeping weight to a minimum
- Tensile strength comparable to titanium, producing an exceptional strength-to-weight ratio
- Thin sidewall construction is possible without sacrificing structural integrity
- Resists fatigue over time, even under sustained thermal and mechanical stress
- Difficult to machine and weld, requiring specialized skills and time-consuming processes
- Higher raw material cost reflects its performance properties and manufacturing complexity

Features

Valvetronic rear exhaust system
Inconel 625 (formula one grade) or 304 stainless steel material options
Substantial weight reduction over factory system
Perfect balance of fast turbo spool, torque, and peak power
Optional HJS HDPE motorsport 100-cell, or 200-cell catted downpipes, or race downpipes available for optimum performance & sound
Downpipe heat shield available

Specifications

Materials:
- Stainless Steel
- Inconel
Diameters:
- Valve Closed: 76mm tapered to 70mm x-pipe
- Valve Open: 50mm into silencer
Weight:
- Stainless Steel:
  - No data available, coming soon
- Inconel:
  - System: 9.65kg (11.25kg reduction from stock)
  - Race Downpipes: 2.15kg each (13.80kg reduction from stock)
  - Total Weight Reduction Over Stock: 25kg (inconel system + inconel race downpipes)

Applications

Lamborghini Revuelto: LB744 | 2024-present | L545 6.5L V12

Notes

Race downpipes are pictured but not included as standard

Frequently Asked Questions

How much weight does the Kline Innovation exhaust remove from the Lamborghini Revuelto? The Inconel 625 valvetronic rear system weighs 9.65kg, a reduction of 11.25kg over the factory unit. Adding the optional Inconel race downpipes at 2.15kg each brings the total weight reduction over stock to 25kg. Stainless steel weight data is not yet available.
What is the difference between valve open and valve closed on the Kline Innovation Revuelto exhaust? On valve open, exhaust gases pass through a tapered 76mm into 70mm X-pipe for unrestricted flow and a sharper, more aggressive tone. On valve closed, flow routes through a 50mm line into the silencer, significantly reducing volume for street driving. This dual-mode behavior is built into the valvetronic system without requiring any external controller.

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.

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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Kline Innovation Valvetronic Exhaust System for LB744 Lamborghini Revuelto [KL-LAM-REVO-VALVE-RS-SS/KL-LAM-REVO-VALVE-RS-INC]

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Kline Innovation Valvetronic Exhaust System for LB744 Lamborghini Revuelto

Materials

Features

Specifications

Applications

Notes

Frequently Asked Questions

About Kline Innovation

Reviews