Stone Exhaust BMW B48 B46 G01 G02 OEM Integrated Valved Catback Exhaust System (X3 30i xDrive & X4 30i xDrive)

Stone Exhaust BMW B48 B46 G01 G02 OEM Integrated Valved Catback Exhaust System (X3 30i xDrive & X4 30i xDrive)

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£2,427.84
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£2,427.84
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£3,034.80
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Description

We are proud to introduce you to the state of the art Stone Exhaust Valvetronic Cat-Back Exhaust System with single valve(s), to enhance the performance and sound of your BMW G01 G02 SAC X3 30i xDrive & X4 30i xDrive with the B48 engine, manufactured after 2017. 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 their 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 exhaust 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 (Single Valve) which enables you to control the valves remotely via the stone remote controller

 

Features

  • BMW B48 G02 X4 30i xDrive Exhaust System.
  • OEM Integration 
  • One Piece Design
  • Plug and Play OBDII controller
  • Mechanical Welding with Precision
  • In House Research and Development
  • 3D Scanning & Reverse Engineering
  • Dyno Developed In House
  • Eliminates drone found on the standard exhaust system


    BMW G02 B48 X4 30i xDrive with Catless DP + Valvetronic Cat-back Exhaust System Sound


    Fitted Photo(s) - Dual Exit with Twin Tailpipe

    Stone Exhaust BMW B48 G02 X4 30i xDrive Cat-Back Valvetronic Exhaust System | Nforcd UK


    Stone Exhaust BMW B48 G02 X4 30i xDrive Cat-Back Valvetronic Exhaust System | Nforcd UK


    Stone Exhaust BMW B48 G02 X4 30i xDrive Cat-Back Valvetronic Exhaust System | Nforcd UK


    Stone Exhaust BMW B48 G02 X4 30i xDrive Cat-Back Valvetronic Exhaust System | Nforcd UK


    Stone Exhaust BMW B48 G02 X4 30i xDrive 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 B58 Exhaust System found on the G01 X3 30i & G02 X4 30i xDrive.

    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 BMW B48 G02 X4 30i xDrive Cat-Back Valvetronic Exhaust System | 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 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 BMW B48 G02 X4 30i xDrive Cat-Back Valvetronic Exhaust System | 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 BMW B48 G02 X4 30i xDrive Cat-Back Valvetronic Exhaust System | 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 BMW B48 G02 X4 30i xDrive Cat-Back Valvetronic Exhaust System | Nforcd UK


      Compatibility - B48 & B46 Engine

      BMW X Series

      • G01 X3 30i xDrive (2017+)
      • G02 X4 30i xDrive (2017+) 


      Warranty 

      Stone Exhaust 2 Year Warranty

       

      Manufactured by

      Stone Exhaust

       

      Part Number

      AP543B (B48 Engine)

      AP543NB (B46 Engine)