AIR CIRCUIT
Manufacturers
AIR CIRCUIT

Subcategories
Silicone Hoses - Silicone Hoses: browse our selection on NSB concept.
Find air and hose and compare options.
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As its name suggests, the air hose ensures air circulation between the filter and the engine. This part can remain on standard cars. Whether you drive in the city, on country roads, or on the highway, you'll keep your air hose for several years. However, if...
How to choose? Match the original part number or key specs (dimensions, type, mounting) and check fitment notes.
Not sure? Use the category filters or reach out with your vehicle details and the reference you need.
Aluminum piping - Aluminum piping: browse our selection on NSB concept.
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How to choose? Match the original part number or key specs (dimensions, type, mounting) and check fitment notes.
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SPORT air filters, original replacement - SPORT air filters, original replacement: browse our selection on NSB concept.
Find air and engine and compare options.
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The air filter plays a vital role in your car's engine. Whether you're involved in rallying or circuit racing, make sure it's always functioning properly. This part traps impurities in the airflow entering the engine. With clean air, you'll ensure a...
How to choose? Match the original part number or key specs (dimensions, type, mounting) and check fitment notes.
Not sure? Use the category filters or reach out with your vehicle details and the reference you need.
Air intake kit PER VEHICLE - Air intake kit PER VEHICLE: browse our selection on NSB concept.
Find vehicle, intake and air and compare options.
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How to choose? Match the original part number or key specs (dimensions, type, mounting) and check fitment notes.
Not sure? Use the category filters or reach out with your vehicle details and the reference you need.
Silicone inlet hose - Silicone inlet hose: browse our selection on NSB concept.
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How to choose? Match the original part number or key specs (dimensions, type, mounting) and check fitment notes.
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Universal Foam Air Filters - Universal Foam Air Filters: browse our selection on NSB concept.
Find universal, filters and foam and compare options.
Filter by reference, fitment and specs to pick the right part.
How to choose? Match the original part number or key specs (dimensions, type, mounting) and check fitment notes.
Not sure? Use the category filters or reach out with your vehicle details and the reference you need.
Universal paper air filters - Universal paper air filters: browse our selection on NSB concept.
Find universal, filters and paper and compare options.
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How to choose? Match the original part number or key specs (dimensions, type, mounting) and check fitment notes.
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Air filter maintenance products - Air filter maintenance products: browse our selection on NSB concept.
Find maintenance, products and filter and compare options.
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How to choose? Match the original part number or key specs (dimensions, type, mounting) and check fitment notes.
Not sure? Use the category filters or reach out with your vehicle details and the reference you need.
Airbox - Airbox: browse our selection on NSB concept.
Find airbox and compare options.
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How to choose? Match the original part number or key specs (dimensions, type, mounting) and check fitment notes.
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Cornet admission - Cornet admission: browse our selection on NSB concept.
Find admission and cornet and compare options.
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How to choose? Match the original part number or key specs (dimensions, type, mounting) and check fitment notes.
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Neoprene boa sheath - Neoprene boa sheath: browse our selection on NSB concept.
Find neoprene, sheath and boa and compare options.
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How to choose? Match the original part number or key specs (dimensions, type, mounting) and check fitment notes.
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UNIVERSAL air intake kit - UNIVERSAL air intake kit: browse our selection on NSB concept.
Find universal, intake and air and compare options.
Filter by reference, fitment and specs to pick the right part.
How to choose? Match the original part number or key specs (dimensions, type, mounting) and check fitment notes.
Not sure? Use the category filters or reach out with your vehicle details and the reference you need.
Air intake - Air intake: browse our selection on NSB concept.
Find intake and air and compare options.
Filter by reference, fitment and specs to pick the right part.
How to choose? Match the original part number or key specs (dimensions, type, mounting) and check fitment notes.
Not sure? Use the category filters or reach out with your vehicle details and the reference you need.
Throttle body adapter - Throttle body adapter: browse our selection on NSB concept.
Find throttle, adapter and body and compare options.
Filter by reference, fitment and specs to pick the right part.
How to choose? Match the original part number or key specs (dimensions, type, mounting) and check fitment notes.
Not sure? Use the category filters or reach out with your vehicle details and the reference you need.
Inner diameter 32mm Length 1 meter MTDA single-layer neoprene boa sheath
Inner diameter 38mm Length 1 meter Double-layer MTD neoprene boa sheath
Inner diameter 102mm Length 1 meter MTDA single-layer neoprene boa sheath
Inner diameter 51mm MTD single-layer neoprene boa sheath, sold by the meter
Inner diameter 57mm, MTD single-layer neoprene boa sheath, 1 meter length
Inner diameter 63mm, MTD neoprene boa sheath, single layer, length 1 meter
Inner diameter 70mm Length 1 meter MTDA single-layer neoprene boa sheath
Inner diameter 76mm, MTD single-layer boa sheath, 1 meter length
Inner diameter 83mm Length 1 meter MTDA single-layer neoprene boa sheath
Inner diameter 89mm Length 1 meter MTDA single-layer neoprene boa sheath
Air box for MISHIMOTO air intake kit for SUBARU Impreza 2.5 AWD EJ255 230hp 01/2008-
Airbox for MISHIMOTO air intake kit for SUBARU Impreza WRX 2.5 AWD EJ255 230hp 09/2005-compatible with GG and GD chassis
Airbox for MISHIMOTO air intake kit for SUBARU Impreza WRX 2.0 Turbo AWD EJ205 225hp 12/2002-compatible with GG and GD chassis
Air box for MISHIMOTO air intake kit for SUBARU Impreza WRX STi 2.5 AWD EJ257 280hp 09/2005-
Airbox for MISHIMOTO air intake kit for SUBARU Impreza WRX STI 2.5 AWD EJ257 301hp 01/2008-
Replacement GREEN air filter for ALFA ROMEO 145. This filter is specifically designed for the 1.4 i 16V Twin Spark 103hp engine.
Replacement GREEN air filter for ALFA ROMEO 145. This filter is specifically designed for the 1.6 i 16VTwin spark 120hp engine.
Replacement GREEN air filter for ALFA ROMEO 145. This filter is specifically designed for the 1.7 i 16V Twin Spark 144hp engine.
Replacement GREEN air filter for ALFA ROMEO 145. This filter is specifically designed for the 1.8 i 16VTwin spark 140hp engine.
Replacement GREEN air filter for ALFA ROMEO 145. This filter is specifically designed for the 1.9 JTD 105hp engine.
Replacement GREEN air filter for ALFA ROMEO 145. This filter is specifically designed for the 2.0 i 16V Twin Spark 150hp engine.
Replacement GREEN air filter for ALFA ROMEO 145. This filter is specifically designed for the 2.0 i 16V Twin Spark 155hp engine.
Replacement GREEN air filter for ALFA ROMEO 146. This filter is specifically designed for the 1.4 i 16V 103hp engine.
Replacement GREEN air filter for ALFA ROMEO 146. This filter is specifically designed for the 1.6 i 16V 120hp engine.
Replacement GREEN air filter for ALFA ROMEO 146. This filter is specifically designed for the 1.7 i 16V 129hp engine.
Replacement GREEN air filter for ALFA ROMEO 146. This filter is specifically designed for the 1.8 i 16V 140hp engine.
Replacement GREEN air filter for ALFA ROMEO 146. This filter is specifically designed for the 1.9 JTD 105hp engine.
Replacement GREEN air filter for ALFA ROMEO 146. This filter is specifically designed for the 2.0 i 16V 155hp engine.
Replacement GREEN air filter for ALFA ROMEO 146. This filter is specifically designed for the 2.0 i 16V Twin Spark 150hp engine.
Replacement GREEN air filter for ALFA ROMEO 155. This filter is specifically designed for the 1.6 120hp engine.
Replacement GREEN air filter for ALFA ROMEO 155. This filter is specifically designed for the 1.8 i 16V 140hp engine.
Replacement GREEN air filter for ALFA ROMEO 155. This filter is specifically designed for the 2.0 i 16V 150hp engine.
Aluminum air inlet scoop / horn, connection 51mm, external diameter 100mm
Aluminum flange for adapting the throttle body to the Clio II RS - C2 VTS intake manifold, without screws
BMC 576/08 Sport Air Filter for AUDI A1 8X 1.2 TFSi 86HP 2010-2015 as a replacement for the original air filter. Benefit from the experience of BMC, Italian manufacturer of performance air filters since 1996.
BMC 576/08 Sport Air Filter for AUDI A1 8X 1.4 TFSi (round filter) 140HP 2012-2014 as a replacement for the original air filter. Benefit from the experience of BMC, Italian manufacturer of performance air filters since 1996.
BMC 576/08 Sport Air Filter for AUDI A1 8X 1.4 TFSi 122HP 2010-2015 as a replacement for the original air filter. Benefit from the experience of BMC, Italian manufacturer of performance air filters since 1996.
BMC 576/08 Sport Air Filter for AUDI A1 8X 1.4 TFSi 185HP 2011-2015 as a replacement for the original air filter. Benefit from the experience of BMC, Italian manufacturer of performance air filters since 1996.
BMC 576/08 Sport Air Filter for AUDI A1 8X 1.6 TDI 105HP 2010-2015 as a replacement for the original air filter. Benefit from the experience of BMC, Italian manufacturer of performance air filters since 1996.
BMC 576/08 Sport Air Filter for AUDI A1 8X 1.6 TDI 90HP 2011-2015 as a replacement for the original air filter. Benefit from the experience of BMC, Italian manufacturer of performance air filters since 1996.
BMC 646/20 Sport Air Filter for AUDI A1 8X 2.0 TDI 136HP 2011-2015 as a replacement for the original air filter. Benefit from the experience of BMC, Italian manufacturer of performance air filters since 1996.
BMC 646/20 Sport Air Filter for AUDI A1 8X 2.0 TDI 143HP 2011-2015 as a replacement for the original air filter. Benefit from the experience of BMC, Italian manufacturer of performance air filters since 1996.
BMC 646/20 Sport Air Filter for AUDI A1 Quattro 8X 2.0 TFSi 256HP 2012 as a replacement for the original air filter. Benefit from the experience of BMC, Italian manufacturer of performance air filters since 1996.
BMC 756/20 Sport Air Filter for AUDI A1 Sportback GB 2.0 40 TFSI 200HP 2018- as a replacement for the original air filter. Benefit from the experience of BMC, Italian manufacturer of performance air filters since 1996.
BMC 756/20 Sport Air Filter for AUDI A1 Sportback GB 2.0 40 TFSI 207HP 2021- as a replacement for the original air filter. Benefit from the experience of BMC, Italian manufacturer of performance air filters since 1996.
BMC 396/08 Sport Air Filter for AUDI A3 8P 1.2 TFSi 105HP 2010-2012 as a replacement for the original air filter. Benefit from the experience of BMC, Italian manufacturer of performance air filters since 1996.
BMC 396/08 Sport Air Filter for AUDI A3 8P 1.4 TFSi 125HP 2007-2012 as a replacement for the original air filter. Benefit from the experience of BMC, Italian manufacturer of performance air filters since 1996.
BMC 396/08 Sport Air Filter for AUDI A3 8P 1.6 102HP 2003-2012 as a replacement for the original air filter. Benefit from the experience of BMC, Italian manufacturer of performance air filters since 1996.
BMC 396/08 Sport Air Filter for AUDI A3 8P 2.0 FSi 150HP 2003-2008 as a replacement for the original air filter. Benefit from the experience of BMC, Italian manufacturer of performance air filters since 1996.
BMC 756/20 Sport Air Filter for AUDI A3 8V 1.6 TDI 105HP 2012-2015 as a replacement for the original air filter. Benefit from the experience of BMC, Italian manufacturer of performance air filters since 1996.
BMC 756/20 Sport Air Filter for AUDI A3 8V 1.6 TDI 110HP 2013-2017 as a replacement for the original air filter. Benefit from the experience of BMC, Italian manufacturer of performance air filters since 1996.
BMC 756/20 Sport Air Filter for AUDI A3 8V 1.6 TDI 30 116HP 2017- as a replacement for the original air filter. Benefit from the experience of BMC, Italian manufacturer of performance air filters since 1996.
BMC 756/20 Sport Air Filter for AUDI A3 8V 1.8 TFSi 180HP 2012-2016 as a replacement for the original air filter. Benefit from the experience of BMC, Italian manufacturer of performance air filters since 1996.
BMC 756/20 Sport Air Filter for AUDI A3 8V 2.0 TDI 110HP 2013-2016 as a replacement for the original air filter. Benefit from the experience of BMC, Italian manufacturer of performance air filters since 1996.
BMC 756/20 Sport Air Filter for AUDI A3 8V 2.0 TDI 136HP 2013-2016 as a replacement for the original air filter. Benefit from the experience of BMC, Italian manufacturer of performance air filters since 1996.
BMC 756/20 Sport Air Filter for AUDI A3 8V 2.0 TDI 143HP 2012-2016 as a replacement for the original air filter. Benefit from the experience of BMC, Italian manufacturer of performance air filters since 1996.
BMC 756/20 Sport Air Filter for AUDI A3 8V 2.0 TDI 35 150HP 2012- as a replacement for the original air filter. Benefit from the experience of BMC, Italian manufacturer of performance air filters since 1996.
BMC 756/20 Sport Air Filter for AUDI A3 8V 2.0 TDI 40 184HP 2013-2016 as a replacement for the original air filter. Benefit from the experience of BMC, Italian manufacturer of performance air filters since 1996.
BMC 756/20 Sport Air Filter for AUDI A3 8V 2.0 TFSi40 190HP 2016-2017 as a replacement for the original air filter. Benefit from the experience of BMC, Italian manufacturer of performance air filters since 1996.
BMC 382/01 Sport Air Filter for AUDI A3 Quattro 8P 3.2 250HP 2003-2009 as a replacement for the original air filter. Benefit from the experience of BMC, Italian manufacturer of performance air filters since 1996.
AIR CIRCUIT - AIR CIRCUIT: browse our selection on NSB concept.
Find circuit and air and compare options.
Filter by reference, fitment and specs to pick the right part.
How to choose? Match the original part number or key specs (dimensions, type, mounting) and check fitment notes.
Not sure? Use the category filters or reach out with your vehicle details and the reference you need.