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F80 M3, F82 M4 Supersprint Racing Cat-less Downpipes

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Ships on Aug 15, 2018
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For a true racing car, the biggest restriction in the exhaust system is the catalytic converters. On modern BMWs there are often two sets - a primary in the header/downpipe and a secondary further back in the exhaust. Removing these restrictions with a cat-less downpipe and straight pipes has enormous benefits for a track or race car: remove the restriction which unlocks huge power and torque gains, less heat (which can reduce power output), zero complication from a clogged or blocked catalytic converter, and less weight. These Supersprint M3/M4 cat-less downpipes are made from stainles steel and have no cats and mandrel-bent pipes for the best flow out the turbos. These will bolt on to the Supersprint or a stock section 1 front pipes. Special software or stand-alone engine management will be required to keep the check engine light and faults from appearing.

Supersprint exhaust is widely recognized as the leader in complete exhaust system upgrades - extremely high quality, well designed for optimal flow, and amazing sound. Even at a premium price Supersprint is an unbeatable exhaust system because every aspect is done to such a high level. A Supersprint exhaust rewards you with a terrific sound, long lasting construction and excellent fitment. The Supersprint sound is very 'European' which fits the sporting sophistication of BMWs perfectly. Most systems are also modular - sections can be added or removed to custom tailor the exhaust sound to your preferance. Aside from 'Race' systems, their mufflers meet European noise laws so you get a refined and tuned sound without being excessively loud. Most Supersprint systems are built with larger diameter piping to improve exhaust flow which helps the engine do less work and make more horsepower! Supersprint exhausts generally run at a premium over other systems but no other system on the market can match their quality, performance, or reputation!


connects to:turbos; section 1 exhaust

material:304 stainless steel

These downpieps will be released in early 2015.


This part alters or deletes the emissions equipment on your car. Removing the primary cats will result in a check engine light and faults for the missing cats. Special software or modules will be required to prevent the codes but this setup will not be street legal. This was designed for race and track use only. Because of this, we require a waiver of emissions compliance to be signed and sent in to TMS. You can download the waiver here.


Video Contents:

  • Catless downpipes
  • Front pipes with 2x 100 CPSI metallic cats
  • Centre H-pipe
  • Rear exhaust with bypass valves
  • 4x90mm chromed tailpipes

This item fits the following BMWs:
2015+ F80 BMW M3 - Sedan
2015+ F82 BMW M4 - Coupe
2015+ F83 BMW M4 - Convertible
Left Hand Drive ONLY

Loading Kit Configurator

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Kit Configurator

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Add Supersprint downpipes

Emissions waiver:

This Part Fits the Following BMWs

Make Model Submodel Engine
BMW F80 M3 S55 3.0L
BMW F82 M4 S55 3.0L
BMW F83 M4 S55 3.0L
*The above product applications have been written by Turner Motorsport. All warranties, product application, fitment, and performance are the responsibility of Turner Motorsport. For additional information see the terms of use.
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