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  • Eliminate the heavy and restrictive factory catalytic converters with straight-pipe, high flowing stainless steel downpipes for maximum power and an exhilarating sound
  • An OEM / Factory vs. Fabspeed comparison.
  • Each set of downpipes is made in-house at Fabspeed, everything from our CNC cut flanges down to the polishing and welding of each piece
  • Fabspeed's Primary Catbypass Downpipes installed on an BMW F82 M4
  • A closer look at our CNC'ed flanges.

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BMW M3 & M4 F80 / F82 / F83 Primary Cat Bypass Downpipes

SKU:
FS.BMW.F8X.PCBDP
$995.00

Other Details

HP (whp):
+15

TQ (ft/lbs):
+16

WT (lbs):
-6


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Product Description

Eliminate the heavy and restrictive factory catalytic converters with straight-pipe, high flowing stainless steel downpipes for maximum power and an exhilarating sound.                                                                                                                         

FEATURES:

  • Fits all BMW F8x M3 & M4 vehicles (2015+)
  • The perfect option for track cars and those who seek the ultimate in agressive exhaust sound
  • Mandrel bent pipes with minimal welds to minimize failure under regular use and increase flow
  • Designed to fit seamlessly with the factory exhaust system, or as an add-on to Fabspeed's Valvetronic Exhaust System.  (Also compatible with any other aftermarket exhaust system that is designed to fit like OEM.)
  • Replaces the restrictive factory catalytic converters with a straight-through "straight-pipe" design for maximum power and exhaust sound.
  • This product replaces the factory catalytic converters and may trigger a Check Engine Light.

 

Fabspeed's Primary Catbypass Downpipes installed on an BMW F82 M4

 

DISCLAIMER: This product removes the OEM catalytic converters from the vehicle, and as such, is strictly intended for closed track events and off-road use only. This product is or contains a Racing Cat Bypass Pipe, which will give you check engine lights on OBD2 cars. We suggest pairing this product with racing software to prevent fault codes and check engine lights. Racing Cat Bypass Pipes are solely intended for track and race cars as they are NOT California Air Resources Board Certified and not EPA certified. You are hereby informed and warned to check your local, state, and federals laws before buying and installing these or any aftermarket parts to be sure whether usage is in violation. All installation-risk and use-risk is borne by the end-user and installer of these parts.

 

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