Stone Exhaust BMW B46/B46D/B48D G20 G21 G22 G23 330i & 430i OEM Integrated Valve Catback Exhaust System (OPF Model)
Stone Exhaust BMW B46/B46D/B48D G20 G21 G22 G23 330i & 430i OEM Integrated Valve Catback Exhaust System (OPF Model)
Stone Exhaust BMW B46/B46D/B48D G20 G21 G22 G23 330i & 430i OEM Integrated Valve Catback Exhaust System (OPF Model)
Stone Exhaust BMW B46/B46D/B48D G20 G21 G22 G23 330i & 430i OEM Integrated Valve Catback Exhaust System (OPF Model)
Stone Exhaust BMW B46/B46D/B48D G20 G21 G22 G23 330i & 430i OEM Integrated Valve Catback Exhaust System (OPF Model)
Stone Exhaust BMW B46/B46D/B48D G20 G21 G22 G23 330i & 430i OEM Integrated Valve Catback Exhaust System (OPF Model)
  • Load image into Gallery viewer, Stone Exhaust BMW B46/B46D/B48D G20 G21 G22 G23 330i & 430i OEM Integrated Valve Catback Exhaust System (OPF Model)
  • Load image into Gallery viewer, Stone Exhaust BMW B46/B46D/B48D G20 G21 G22 G23 330i & 430i OEM Integrated Valve Catback Exhaust System (OPF Model)
  • Load image into Gallery viewer, Stone Exhaust BMW B46/B46D/B48D G20 G21 G22 G23 330i & 430i OEM Integrated Valve Catback Exhaust System (OPF Model)
  • Load image into Gallery viewer, Stone Exhaust BMW B46/B46D/B48D G20 G21 G22 G23 330i & 430i OEM Integrated Valve Catback Exhaust System (OPF Model)
  • Load image into Gallery viewer, Stone Exhaust BMW B46/B46D/B48D G20 G21 G22 G23 330i & 430i OEM Integrated Valve Catback Exhaust System (OPF Model)
  • Load image into Gallery viewer, Stone Exhaust BMW B46/B46D/B48D G20 G21 G22 G23 330i & 430i OEM Integrated Valve Catback Exhaust System (OPF Model)

Stone Exhaust BMW B46/B46D/B48D G20 G21 G22 G23 330i & 430i OEM Integrated Valve Catback Exhaust System (OPF Model)

Regular price
£2,427.84
Sale price
£2,427.84
Regular price
£3,034.80
Sold out
Unit price
per 
Tax included. Shipping calculated at checkout.

Description

We are proud to introduce you to the state of the art Stone Exhaust Valvetronic Cat-Back Exhaust System, to enhance the performance and sound of your BMW G20 Sedan 330i & G21 Touring 330i & G22 Coupe 430i & G23 Convertible 430i with the B48D engine.

Stone Exhaust has been developing world's best exhaust system since 1998, starting with 3D scanning and reverse engineering the OEM system, this allows the Stone engineers to design a 100% OEM fitment exhaust with precision. With our in-house dyno, your BMW exhaust system is proven to produce more power with the enhanced Stone signature exhaust sound.

The OEM Integred Valve option allows your exhuast system to operate as standard, where the onboard computer (ECU) will control the opening and closing of the valves automatically.

 

You may wish to add the Stone Valvetronic System (Singe Valve) which enables you to control the valves remotely via the stone remote controller.

 

Features

  • OEM Integration
  • Optional Stone Valvetronic System available
  • OPF ExhaustDesign
  • Plug and Play OBDII controller
  • One Piece Design
  • Machine Welding
  • In House Research and Development
  • 3D Scanning & Reverse Engineering
  • Dyno Developed In House
  • Eliminates drone found on the standard exhaust system

     

    Fitted Photo(s)

    Stone Exhaust BMW B48D G20 G21 330i Cat-Back Valvetronic Exhaust System - Nforcd UK

     

    Stone Exhaust BMW B48D G20 G21 330i Cat-Back Valvetronic Exhaust System - Nforcd UK

     

    Stone Exhaust BMW B48D G20 G21 330i Cat-Back Valvetronic Exhaust System - Nforcd UK

     

    Stone Exhaust BMW B48D G20 G21 330i Cat-Back Valvetronic Exhaust System - Nforcd UK

     

    OPF Delete

    Stone offers an OPF delete, which can be included free of charge, this allows you to install the Stone Cat-Back exhaust system on OPF equipped cars without throwing an error code, thus coding out the OPF error code on the ECU is not required.

     

    R&D and 3D Scanning

    Stone Exhaust engineers use reverse engineering by 3D scanning OEM parts to understand their functionality and identify weaknesses. Data has been collected continuously in order to analyze factors such as pipe diameter, route and degrees of the bending angles of the B48D Exhaust System found on the M6. 

    During R&D, Stone Exhaust utilizes the 3D simulation software to stimulate the exhaust gas flow movement, thermal and pressure rise zone. Progressive improvements were continually made until the optimal performance was achieved.

    Stone Exhaust System 3D Scanning Reverse Engineering UK - Nforcd UK

      

    7 Axis CNC Bending Machine

    Stone Exhaust System are constructed utilizing a 7 axis CNC Bending Machine which is the ultimate machine for high levels of precision delivery, necessary for industries such as the aerospace and defense industries.

      With the state-of-the-art bending machine, Stone Exhaust has achieved the industry’s standard to an impressive 98% roundness, whilst maintaining the wear of the outer bore at only 25% at 180°. Airflow obstruction and welding fracture problems are prevented by utilizing this technology. With the combination of the CNC Bending machine, Reverse Engineering and 3D Design Scanning, Stone exhaust has created an integrally molded exhaust pipe with an accuracy error under 0.025mm.

      Stone Exhaust System UK Bending - Nforcd UK

       

      Crisscross and Overlapping Welding Technique

      The flange between the turbo and the downpipes reaches extreme temperatures (800℃ to 1100℃) which creates stress on the connection point. By utilizing both welding techniques to increases the width and penetration of welds. This increases the endurance and tolerance of these connection points, leading to quality products with reliable performance.

      Stone Exhaust Art of Welding - Nforcd UK

       

      Direct Spot Welding

      Our highly skilled engineers perform direct spot welding to increase product strength. This is undertaken by mechanical welding arms, proven to achieve greater precision and penetration in their welds compared to manual welding, resulting in an end product that is a work of art.

      Stone Exhaust Art of Welding - Nforcd UK

       

      Compatibility - B46 / B46D / B48D Engine

      BMW 3 Series

      • G20 330i/330i xDrive (2017+)
      • G21 330i/330i xDrive (2018+)

      BMW 4 Series

      • G22 430i/430i xDrive (2020+)
      • G23 430i/430i xDrive (2020+)
      • G26 430i/430i xDrive (2020+)


        Warranty

        Stone Exhaust 2 Year Warranty

         

        Manufactured by

        Stone Exhaust

         

        Part Number

        AP537AG (Dual Exit with Twin Tailpipes / Require Original Bumper)