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Wagner Tuning BMW Exhaust Parts, Mufflers & Catalytic Converters

Performance exhaust options from the best BMW aftermarket producers and the most reliable replacement maintenance parts are all at Turner Motorsport. Over time, factory exhaust on the cleanest examples of BMW heritage shows their age. Our factory replacement exhausts are just what you need to keep your favorite car in showroom condition or finish off your restoration. If you are looking for a bump in sound and power, you can also find our performance options like Headers, Downpipes, and Mufflers from Corsa, DINAN, and others on this page.
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Wagner Downpipe With Sport Cat - N20 - F30 320i 328i, F32 428i F22 22...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with the N20 engine only - will NOT work with the N26 SULEV Engines!
Wagner Tuning - Corporate Logo
T#:214370
Part#: 500001011
In Stock
Sale - Save 10% $ 799.00

This product was last offered at the strikethrough price on
07-06-2026

$ 719.10 USD
Sale - Save 10%
$ 799.00

This product was last offered at the strikethrough price on
07-06-2026

$ 719.10 USD

This N20 downpipe feature larger piping and catalytic converter that are freer-flowing than the original cats for better flow and less backpressure. By removing exhaust restrictions the turbos can spool up faster which makes more boost sooner. With additional tuning, more power is available. There are downpipes that delete the primary cats and can leave the exhaust with a dirty and awful smell. These Wagner downpipes are built with a sport cat to keep the exhaust cleaner.Special software, or stand-alone engine management, may be required to keep emissions fault codes and check engine lights from appearing.

Features:

  • 200cpi Catalytic Converter
  • 100% perfect fit - CAD designed.
  • less thermal load on the turbocharger
  • more power by reducing back pressure
  • significantly more torque
  • Made from 1.4301 (SS304) Stainless Steel

     

This product modifies (but does not remove or defeat) emissions equipment. For this reason this product may not be CARB compliant, and therefore not emissions legal in some states. Consult local laws and regulations in your area. For more information on this product, feel free to contact our sales department.

 

This item fits the following BMWs:
2014+ F22 BMW 228i
10/2012+ F30 BMW 328i 328i xDrive 328xi - Sedan (with N20 engine; not for N26 SULEV engine)
2014+ F32 BMW 428i 428i xDrive 428xi - Coupe (with N20 engine; not for N26 SULEV engine)
Left Hand Drive ONLY

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Wagner Downpipe With Sport Cat - N55 - E9x 135i, E9x 335i
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Wagner Tuning - Corporate Logo
T#:214367
Part#: 500001005
Ships in 2 Business Days
Sale - Save 51% $ 899.00

This product was last offered at the strikethrough price on
04-20-2026

$ 441.00 USD
Sale - Save 51%
$ 899.00

This product was last offered at the strikethrough price on
04-20-2026

$ 441.00 USD

These N55 downpipes feature larger piping and catalytic converter that are freer-flowing than the original cats for better flow and less backpressure. By removing exhaust restrictions the turbos can spool up faster which makes more boost sooner. With additional tuning, more power is available. There are downpipes that delete the primary cats and can leave the exhaust with a dirty and awful smell. These Wagner downpipes are built with a sport cat to keep the exhaust cleaner.Special software, or stand-alone engine management, will be required to keep emissions fault codes and check engine lights from appearing.

Features:

  • 200cpi Catalytic Converter
  • 100% perfect fit - CAD designed.
  • less thermal load on the turbocharger
  • more power by reducing back pressure
  • significantly more torque
  • Made from 1.4301 (SS304) Stainless Steel

For 2011 models, pick up a Cobb AccessPort programmer to go along with these downpipes. Additional tunes are available that will get the most out of this upgrade. Not only will the Cobb AP increase horsepower and torque but special programming is available to keep fault codes, check engine lights, and limp mode from disrupting your day. It has other features too such as data logging and diagnostic fault code reading and clearing. The Cobb AP is the most sophisticated programming tool available for the 135/335 and no tuning plan should be without one..

Made in the USA.

This product modifies (but does not remove or defeat) emissions equipment. For this reason this product may not be CARB compliant, and therefore not emissions legal in some states. Consult local laws and regulations in your area. For more information on this product, feel free to contact our sales department.

 


This item fits the following BMWs with the N55 engine:
2011-2013 E82 BMW 135i 135is
2011 E90 BMW 335i 335xi 335i xDrive - Sedan
2011-2013 E92 BMW 335i 335xi 335i xDrive - Coupe
2011-2013 E93 BMW 335i - Convertible
Left Hand Drive ONLY

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Wagner Downpipe With 300CPSI Sport Cat - N55 - F30 335i, F32 435i F22...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Wagner Tuning - Corporate Logo
T#:214368
Part#: 500001013
Ships on Jul 27, 2026
Sale - Save 10% $ 899.00

This product was last offered at the strikethrough price on
07-06-2026

$ 809.10 USD
Sale - Save 10%
$ 899.00

This product was last offered at the strikethrough price on
07-06-2026

$ 809.10 USD
These N55 downpipes feature larger piping and catalytic converter that are freer-flowing than the original cats for better flow and less backpressure. By removing exhaust restrictions the turbos can spool up faster which makes more boost sooner. With additional tuning, more power is available. There are downpipes that delete the primary cats and can leave the exhaust with a dirty and awful smell. These Wagner downpipes are built with a sport cat to keep the exhaust cleaner.Special software, or stand-alone engine management, will be required to keep emissions fault codes and check engine lights from appearing. Features: 300cpi Catalytic Converter 100% perfect fit - CAD designed - Replaces BMW # 18328602882 less thermal load on the turbocharger more power by reducing back pressure significantly more torque Made from 1.4301 (SS304) Stainless Steel
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Wagner Tuning High Flow 200 Cell Catted Downpipe - F8X S55
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Wagner Tuning - Corporate Logo
T#:587590
Part#: 500001023
Ships in 2 Business Days
Sale - Save 10% $ 2,290.00

This product was last offered at the strikethrough price on
07-06-2026

$ 2,061.00 USD
Sale - Save 10%
$ 2,290.00

This product was last offered at the strikethrough price on
07-06-2026

$ 2,061.00 USD
A higher flowing catalytic substrate for dramatically improved throttle response and torque.

Wagner Downpipe With Sport Cat - N55 - F30 335i thru 6/2013
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Wagner Tuning - Corporate Logo
T#:214369
Part#: 500001010
Ships in 2 Business Days
Sale - Save 10% $ 910.00

This product was last offered at the strikethrough price on
07-06-2026

$ 819.00 USD
Free Shipping on orders $49 and up
Sale - Save 10%
$ 910.00

This product was last offered at the strikethrough price on
07-06-2026

$ 819.00 USD
Free Shipping on orders $49 and up

Wagner downpipes for F30 feature larger piping and catalytic converter that are freer-flowing than the original cats for better flow and less backpressure. By removing exhaust restrictions the turbos can spool up faster which makes more boost sooner. With additional tuning, more power is available. There are downpipes that delete the primary cats and can leave the exhaust with a dirty and awful smell. These Wagner downpipes are built with a sport cat to keep the exhaust cleaner.Special software, or stand-alone engine management, will be required to keep emissions fault codes and check engine lights from appearing.

Features:

  • 200cpi Catalytic Converter
  • 100% perfect fit - CAD designed.
  • less thermal load on the turbocharger
  • more power by reducing back pressure
  • significantly more torque
  • connection diameter 105mm
  • Made from 1.4301 (SS304) Stainless Steel


     
  •  

This product modifies (but does not remove or defeat) emissions equipment. For this reason this product may not be CARB compliant, and therefore not emissions legal in some states. Consult local laws and regulations in your area. For more information on this product, feel free to contact our sales department.


This item fits the following BMWs with the N55 engine:
2012-6/2013 F30 BMW 335i 335i xDrive - Sedan
Left Hand Drive ONLY

Show More Show Less
High Flow 200 Cell Catted Downpipe - F Series B58
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Wagner Tuning - Corporate Logo
T#:587591
Part#: 500001027
Ships in 2 Business Days
Sale - Save 10% $ 1,090.00

This product was last offered at the strikethrough price on
07-06-2026

$ 981.00 USD
Free Shipping on orders $49 and up
Sale - Save 10%
$ 1,090.00

This product was last offered at the strikethrough price on
07-06-2026

$ 981.00 USD
Free Shipping on orders $49 and up
A higher flowing catalytic substrate for dramatically improved throttle response and torque.