Stone Exhaust BMW B58C G01 G02 G14 G15 Catless Downpipe - OPF model (Inc. 840i, X3 M40i & X4 M40i) | Stone Exhaust USA

Stone Exhaust BMW B58C G01 G02 G14 G15 Catless Downpipe - OPF model (Inc. 840i, X3 M40i & X4 M40i)

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$979.00
Regular price
$979.00
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In order to get even better efficiency for the section of exhaust turbine, as well as to prevent multiple welding positions in the downpipe section, which generates ash in the pipe while welding, causing bad exhaust efficiency, and then generates vaper lock and thus inability to exhaust, Stone Exhaust uses a variety of smart ideas in downpipe design. The company employs flow velocity measurement software in 3D and the technique of one-piece bend pipes, along with mechanical arms which accurately welds without generating ash in the pipe wall in order to further exhaust efficiency of De-Cat Downpipe. It is a perfect and effective product which has surpassed all similar products in the market.

 

Features

  • Catless downpipe for G14, G15, G16, 840i (OPF model)
  • Flex design to prevent breakage caused by extreme heat 
  • Plug and Play OBDII controller
  • Crisscross welding to strengthen turbo flange
  • One Piece Design
  • Machine Welding
  • In House Research and Development
  • 3D Scanning & Reverse Engineering
  • 100% OEM Fitment

 

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 B58C Exhaust System found on the G14, G15, G16, 840i. 

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

 

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.

    7 Axis CNC Bending Machine | Stone Exhaust USA

     

    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 - Stone Exhaust USA

     

    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 - Stone Exhaust USA

     

    Compatibility - B58C Engine

    BMW 8 Series

    • G14/G15/G16 840i (2018+)

    BMW X Series

    • G01 X3 M40i xDrive (2016-2018)
    • G02 X4 M40i xDrive (2017-2018)
    • G05 X5 40i xDrive (2017+)
    • G06 X6 40i xDrive (2018+)
    • G07 X7 40i xDrive (2018+)

     

    SKU

     A229P

     

    Warranty

    Stone Exhaust One Year Warranty

     

    Dimension 

    Information will soon be Update.

     

    Weight

    Information will soon be Update.

     

    Emission Notice 

    Various U.S. states and the U.S. federal government have individual laws regulating the use of aftermarket exhaust parts and system, especially when the stock system is modified, remove, or if you are replacing original catalysts. Please consult the appropriate law department in your area before installing any aftermarket part or system on your vehicle to ensure compliance with all applicable laws. The purchasers are entirely responsible for informing themselves of the applicable laws where the products are to be used and to comply with those laws.