Jeu silencieux à clapets "Brombacher" 997 -08 inox avec 2 sorties 2x90mm

FVD Brombacher Valved Sport Muffler Set – Porsche 997.1

Experience two distinct exhaust personalities in one premium system.

The FVD Brombacher “Jekyll and Hyde” valved sport muffler was developed specifically for the Porsche 997.1. With the valves closed, it delivers a refined, subtle sound suitable for comfortable daily driving. Open the valves and the system produces a deep, exotic motorsport tone inspired by the unmistakable sound of a Porsche GT3 Cup car.

Designed to complement Porsche's racing heritage, this system offers an ideal balance of everyday usability, performance, and aggressive sound when you want it. For drivers seeking a top-of-the-range exhaust for a daily-driven 997.1, this is the ultimate choice.

Key Features:

• Gains of up to 10 HP and 9 lb-ft of torque
• 2.5-inch (63.5 mm) tubing designed to reduce thermal stress
• Includes four 90 mm round exhaust tips
• Total weight: 33 lb. (15.0 kg)
• High-quality German stainless-steel construction for excellent durability
• Factory-stamped muffler housings designed to help minimize drone
• Manufactured in Germany by M&M Exhaust GmbH
• Deep, exotic GT3 Cup-inspired sound at wide-open throttle
• Refined, near-stock sound with the valves closed
• Improved exhaust flow and throttle response throughout the rev range

Advanced Motorsport Construction:
The Brombacher Edition 997.1 sport muffler set differs significantly from conventional aftermarket designs. Its lightweight motorsport construction uses double-perforated sound-absorption tubes based on the German Halbgegenstromprinzip, or half-counterflow principle.

The internal absorption tubes feature a trapezoidal perforation pattern with openings of varying diameters. This carefully engineered design helps isolate and absorb the specific frequencies responsible for unwanted cabin drone.

Unlike conventional baffle plates, the perforated-tube construction creates less restriction at high exhaust-gas velocities. The result is improved flow, stronger performance across the entire rev range, and sharper throttle response.

Sound on Demand:
With the valves open, the mufflers produce a rich, sonorous GT3 Cup-style tone through the midrange and upper rpm band. With the valves closed, the system remains quiet, controlled, and comfortable enough for regular street use.

This distinctive sound is no coincidence. The complete FVD Brombacher exhaust range is manufactured in Germany by M&M Exhaust GmbH, a specialist producer of Porsche motorsport and racing exhaust systems.

Each system is comprehensively tested for:

• Exhaust-flow characteristics
• Thermal stress
• Resistance to cracking
• Long-term durability
• Street and track performance

Whether you are looking for the ideal street exhaust or a system capable of handling demanding track use, the Brombacher sport muffler delivers performance, durability, and exclusivity beyond typical dealer-installed or mass-market tuner systems.

Stand out at your next track day, cars-and-coffee event, or weekend drive with an exhaust that looks, performs, and sounds unmistakably special.

Vehicle Compatibility and Installation Notes:
Designed for Porsche 997.1 models originally equipped with the standard exhaust system or with Porsche Sport Exhaust (PSE).

Vehicles with the standard non-valved exhaust require the following retrofit kit:

• Valved Retrofit Kit: Part No.BESKLS000001

For installation, we recommend replacing both factory muffler clamping sleeves:

• Muffler Clamping Sleeve:Part No. 99711152000
• Required quantity: 2