AMS Alpha 3" Stainless Steel Downpipes w/ Catalytic Converter | BMW M5 F10 4.4L Bi-Turbo - (NLA)


Part# ALP.13.05.0001-2

The AMS Alpha M5 Downpipes are the ultimate solution for improving power, throttle response and exhaust note without sacrificing quality, fitment or design. Each Alpha M5 Downpipe features a smooth transition from their massive 3.5" inlet down to the 3" tubing for optimum flow. While competitors choose a very short transition length which creates turbulence and hurts exhaust flow and power, the AMS Engineering team implemented a longer length to give your M5 maximum output.

These downpipes are properly designed and engineered using a CMM Laser Scanner for a perfect fit and space optimization. AMS took the time to integrate the factory O2 sensors, heat shielding and brackets for a clean and proper OEM-like installation. Another unique benefit is the racing catalytic converter. These 300 cell count units provide nearly no disruption in flow and feature a staked in design to hold the catalyst firmly in place.

Features:
  • .065" thick, 100% 304 stainless steel tubing
  • Big increases in power throughout the powerband
  • Improved turbo & throttle response
  • Premium 300 cell race catalytic converters
  • Exotic exhaust note
  • Massive 3.5" primary inlets
  • Precise and proper fitment using factory heat shielding
  • Includes ALL necessary parts and hardware for installation
Fitment:
  • BMW M5 (F10) 4.4L Bi-Turbo 12-16

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