Simons stainless steel sports exhaust system Duplex 90 mm for BMW F33 420i, 428i

Scope of delivery:Sports exhaust system - as shown

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• Scope of delivery: complete system incl. accessories (mounting material, clamps, etc.)

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• Documents: Not approved in the StVZO
  High-quality workmanship made from durable stainless steel for sporty sound and optimum performance.

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Technical data:

• Pipe diameter: 76 mm  + 2x 63.5 mm
• Tailpipe:  Duplex 90 mm
  EC type:  Not approved in the StVZO
• Material: Stainless steel

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  With or without xDrive.
  Suitable for diffuser for 335/435, which can be exchanged for an M sports package. Does NOT fit for bumper/diffuser with only one outlet on the left side, as this outlet is in a different position and therefore cannot be cut to the same size on the right side.
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suitable for: 

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F32/F33/F36 420i/428i Convertible/Coupé/Gran Coupé year 2011-2015(06)

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Description:
Our exhaust systems come from Sweden from the brand Simons and are manufactured according to ISO9001:2008 standard. Before the systems are launched on the market, a prototype is created by the product development department. This is always adapted directly to the vehicle, sound tests are carried out, engine efficiency and back pressure are measured. This guarantees 100% accuracy of fit and engine harmony. This is because a turbo engine, unlike a naturally aspirated engine, does not require exhaust back pressure. Absorption silencers are used for turbo-powered vehicles and a chamber system for naturally aspirated engines, both are very noise-insulating and still have a throaty, sporty sound (depending on the observer, of course). The sports exhaust systems usually all have EC type approval (see description)