Meet the latest technology that adheres to the world's increasingly stringent environmental regulations at the same time enhances performance to another level. In comparison to commercially available linear frustums, the "eddy catalytic technology" adopts an arc-packaging method. The turbine emissions process produces a vortex effect which purifies the exhaust gases while maintaining an equal amount of back pressure. When compared to a variety of horsepower tests and straight downpipes, our patented eddy catalytic technology can effectively increase horsepower and torque.

• Patented O2 sensor technology design provides real-time data performance by accurately sensing every rotating displacement. No more delayed or error code problem.
• Using one of the rare noble metal to help efficiently filter out exhaust gas.
• Computer simulation of the best diameter.
• A special 3D design able to achieve a perfectly matching model with the original pipe. the same installation applies, no need to modify.
• SUS304 Stainless steel.
• Dual Cross-Welding Technology providing substantial increase durability.
• UK MOT friendly and Euro 6 Compliant
  

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. 

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.

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. 

M270 Engine

Mercedes-Benz 

A-Class

• W176 A180 BlueEFFICIENCY (2012+)
• W176 A250 BlueEFFICIENCY (2012+)
• W176 A250 4MATIC BlueEFFICIENCY (2013+)
• W176 A250 Sport  (2012+)

CLA-Class

• C117 CLA200 (2013-2018)
• C117 CLA 250 (2013-2018)
• C117 CLA 250 Sport (Coupé only) (2014-2018)
• C117 CLA 250 4MATIC (2013-2018)
• C117 CLA 250 Sport 4MATIC (2014-2018)
• X117 CLA 250 Shooting Brake (2014-2018)

GLA-Class

• X156 GLA200 (2013+)
  
• X156 GLA250 (2013+)

Infiniti

 H15

• Infiniti Q30 1.6T (2015+)
• Infiniti Q30S 2.0T (2015+)

M203E

Manufactured by

Stone Exhaust

Warranty

Stone Exhaust 2 Year Warranty

OEM Eddy Catalytic Downpipie V.S Stock

Fitted Photos

Videos

Mercedes Benz M270 C117 CLA250 Eddy DP + Valvetronic Catback System Sound