The Aston Martin V12 Vantage carries one of the most iconic engines in modern motoring, a naturally aspirated 5.9L V12 that blends elegance with raw intensity. To bring out every ounce of its potential, Kline Innovation has engineered a set of exhaust manifolds designed specifically for this platform. Available in stainless steel or aerospace-grade Inconel 625, these manifolds transform both the performance and character of the Aston Martin V12 Vantage, giving the car the soundtrack and strength worthy of its heritage.
Kline’s manifolds are built with a focus on reducing back pressure while optimizing gas flow, a critical step in unlocking horsepower and torque gains from the V12. The improved efficiency sharpens throttle response, delivers stronger mid-range power, and enhances the already stirring note of the engine. At lower revs, the sound is a deep growl, while under hard acceleration, it builds into an intoxicating roar that fills the cabin with mechanical symphony.
Beyond performance, attention is paid to fitment and aesthetics. The compact design ensures proper clearance in the tight Aston Martin V12 Vantage engine bay, while the polished finish lends a refined, motorsport-inspired look. Rigorously tested under demanding conditions, each set is built to meet the highest standards of reliability and longevity. It is a true balance of form and function, meant to endure while still providing visual appeal whenever the hood is lifted.
For owners looking for a balance of cost efficiency, strength, and tone, the manifolds can be produced in 304-grade stainless steel. This material is widely used across high-performance exhaust applications and delivers durability while producing a naturally appealing exhaust note that complements the Aston Martin V12 Vantage’s refined nature. Stainless steel also provides a distinctive resonance, lending a crisp tone that many drivers find ideal for both road use and touring.
For those chasing ultimate performance and endurance, Kline offers Inconel 625. Known for its use in Formula One exhausts and hypercar programs such as the McLaren P1 and Aston Martin One-77, Inconel’s thermochemical stability and tensile strength allow for thinner walls without sacrificing integrity. The result is a lighter, stronger manifold capable of handling extreme heat cycles while maintaining structural stability over time. Its manufacturing complexity makes it a premium choice, but the benefits are unrivaled for high-performance applications. Inconel also creates a sharper, more aggressive exhaust note, especially when paired with high-flow downpipes, giving the V12 a race-bred edge without compromising refinement.
Kline provides flexible options depending on driver preference. Customers can choose between 100-cell or 200-cell downpipes for a balance of performance and compliance, while dedicated racing downpipes are available for maximum flow and track-focused setups. This range allows owners to tailor their exhaust system to the type of driving they prioritize, whether it be spirited road driving or uncompromising track performance. Each choice has been designed with precision so that no matter the setup, quality and consistency remain constant.
Kline Innovation takes a no-compromise approach to every product, with all projects developed entirely in-house. The process integrates laser scanning, CNC cutting, mandrel bending, milling, welding, and even autoclave carbon fiber production. This full-spectrum control ensures that every product leaves the facility at the highest possible standard.
Their client list underscores that reputation. Recent projects include collaborations with W Motors on the Fenyr Supersport, Corbellati on the Missile hypercar, and RUF Automobil on their latest builds. These partnerships highlight the confidence elite manufacturers place in Kline’s capabilities. For Aston Martin owners, it means the same level of expertise that goes into these world-class machines is present in every manifold.
For Aston Martin V12 Vantage owners seeking to sharpen performance and elevate the driving experience, the Kline Innovation exhaust manifolds are the ultimate upgrade. With the choice of stainless steel or Inconel construction and multiple downpipe configurations, these manifolds unlock additional power while enhancing the unmistakable voice of the V12. They are available now through Bulletproof Automotive.
