BMW F30/F31 320i/328i Stone Boutique RC Valvetrontic Performance Exhaust System

Under the bonnet, The 320i runs a (twin scroll) turbo 2.0-litre petrol four cylinder with variable valve timing and valve lift for efficiency gains and direct fuel injection. It achieves 184PS/270Nm and drives the rear wheels through an eight speed auto with launch control. The standard version will accelerate from 0 to 100km/h in 7.6 seconds and up to a top speed of 235 km/h. The 328i with the same N20B20 engine cranks out 245PS/350Nm with a top speed of 250km/h and dashes from 0 to 100km/h within 6.1 seconds with the automatic gearbox.

Stone Boutique Series
N20 Eddy downpipe for BMW F30/F31 320i /328i
How it works?

Our patent design allows the O2 sensor to accurately read voltage signals at different rpm ranges with no extra O2 spacer, extender or O2 eliminator installed. No CEL issue, no ECU tune, either. The flexible pipe design effectively reduces the vibration from the engine, therefore, offering a more comfortable driving experience. Directly fit to the OEM center section, the installation is easy.
The Eddy downpipe for BMW N20 engine effectively creates a whirl flow to guide the waste gasses to pass though the exhaust path at a faster rate. It can also add more contact area of the catalyst metal and the exhaust gas, which gives a more thorough cleaning effect and avoids the torque loss in lower rpm range. This innovative design focuses on increasing flow capability without sacrificing its job to reduce the harmful emission. Eddy Catalyst offers not only a better flow capability but also a cleaner exhaust emission and an overall performance gain.
The prototype downpipe is tested over 100days/ 5000kms on the real road condition before it hits the market.

N20 decat downpipe
The factory downpipe is usually the section where the exhaust gas gets clogged. To enhance the efficiency of the engine, a downpipe upgrade is the easiest way to get the power out if it doesn’t cause any CEL issues. Our decat downpipe overcomes such problem. A real plug and use installation without any extra ECU tune, which saves your time and money. The extra lower sound it gives really puts the icing on the cake!

Cat-back performance exhaust system
Features:
2 versions to choose from ( Stock bumper, 335i bumper )
Crafted with premium 304 stainless steel
Mandrel pipe bending
100% TIG welding by robotic welding arms and experienced master welders.
Lightweight flanges
Enlarged tube diameter (63.5MM, 70MM)
Patent built-in Pressure Valves System in rear muffler
How the PVS works?

Comes with optional tip selections (stainless, genuine titanium or carbon fiber)
Sounding video links:

For availability, pricing and more details please contact us.
Wechat ID: georgekong2015
Line ID: georgekong2015
FAX: 886-2-29082025
EMAIL: stonerd@ms61.hinet.net
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By | 2016-11-17T19:21:45+00:00 September 29th, 2016|Categories: BMW Coding|0 Comments

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